Finding the Third Proportional to 128,386.13 and 187,824.75
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Solution
The third proportional to 128,386.13 and 187,824.75 is: 274,781.54
Step by Step Solution
- Step 1: Write the proportion equation
128,386.13 : 187,824.75 = 187,824.75 : x - Step 2: Convert to fraction form
128,386.13/187,824.75 = 187,824.75/x - Step 3: Cross multiply
128,386.13x = 187,824.75 × 187,824.75 - Step 4: Simplify right side
128,386.13x = 35,278,136,712.56 - Step 5: Solve for x
x = 35,278,136,712.56/128,386.13 - Step 6: Final answer
x = 274,781.54
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These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.