By following the given example;
a. 25% of 124 is 31.
b. 43% of 230 is approximately 98.9.
How to calculate proportion
a. To find 25% of 124, write the proportion format of the number
25/100 = x/124
Cross multiply
25(124) = 100x
x = 3100/100
x = 31
Therefore, 25% of 124 is 31.
b. To find 43% of 230, write the proportion format of the number
43/100 = x/230
Cross multiply
43(230) = 100x
x = 9890/100
x = 98.9
Therefore, 43% of 230 is approximately 98.9.