Final answer:
The remaining principal balance on a $130,000 mortgage with a 6% APR after 15 years of monthly payments of $1,798.65 requires an amortization calculation, which involves considering interest rates, total loan amount, loan term, and payments made.
Step-by-step explanation:
The question pertains to determining the remaining principal balance of a mortgage after making payments for 15 years. The original mortgage is a 30-year loan for $130,000 with an annual percentage rate (APR) of 6%. Considering the given monthly repayment amount ($1,798.65) and the total amount paid after 30 years ($647,514.57), we need to calculate what portion of the loan will still be due after 15 years of payments.
Typically, this type of calculation would involve amortization formulas or tables that take into consideration the interest rate, the total loan amount, the term of the loan, and the payments made to date. However, to obtain an exact figure for the remaining balance after 15 years, one would use either a financial calculator or a specialized computer program that can handle such amortization calculations. Additionally, if payments were increased ($1,948.54, as per the example), it is expected that the loan would be paid off faster, and the interest paid over the life of the loan would be reduced.