Final answer:
Of Jorge's final 401(k) balance of $226,714.31, a total of $142,714.31 represents the interest earned over the 35 years, with the remaining amount being his personal contributions.
Step-by-step explanation:
Jorge's investment problem involves calculating the amount of interest earned on a 401(k) with a fixed annual contribution. To find how much of Jorge's final balance is interest, we first need to determine the total amount he has invested over the 35 years. Monthly contributions of $200 for 35 years (35 years * 12 months/year) total $84,000 of personal contributions. We then subtract this sum from the overall account balance of $226,714.31 to find the interest earned.
Interest earned = Final balance - Total contributions
Interest earned = $226,714.31 - $84,000
Interest earned = $142,714.31
Therefore, Jorge's balance consists of $142,714.31 in interest over the 35 years.