Finding the Third Proportional to 81,416.81 and 129,229.31
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Solution
The third proportional to 81,416.81 and 129,229.31 is: 205,119.98
Step by Step Solution
- Step 1: Write the proportion equation
81,416.81 : 129,229.31 = 129,229.31 : x - Step 2: Convert to fraction form
81,416.81/129,229.31 = 129,229.31/x - Step 3: Cross multiply
81,416.81x = 129,229.31 × 129,229.31 - Step 4: Simplify right side
81,416.81x = 16,700,215,209.22 - Step 5: Solve for x
x = 16,700,215,209.22/81,416.81 - Step 6: Final answer
x = 205,119.98
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These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.