Finding the Third Proportional to 81,721.13 and 176,572.13
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Solution
The third proportional to 81,721.13 and 176,572.13 is: 381,513.54
Step by Step Solution
- Step 1: Write the proportion equation
81,721.13 : 176,572.13 = 176,572.13 : x - Step 2: Convert to fraction form
81,721.13/176,572.13 = 176,572.13/x - Step 3: Cross multiply
81,721.13x = 176,572.13 × 176,572.13 - Step 4: Simplify right side
81,721.13x = 31,177,715,327.02 - Step 5: Solve for x
x = 31,177,715,327.02/81,721.13 - Step 6: Final answer
x = 381,513.54
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These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.