Finding the Third Proportional to 85,891.13 and 129,778.13
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Solution
The third proportional to 85,891.13 and 129,778.13 is: 196,089.66
Step by Step Solution
- Step 1: Write the proportion equation
85,891.13 : 129,778.13 = 129,778.13 : x - Step 2: Convert to fraction form
85,891.13/129,778.13 = 129,778.13/x - Step 3: Cross multiply
85,891.13x = 129,778.13 × 129,778.13 - Step 4: Simplify right side
85,891.13x = 16,842,361,728.52 - Step 5: Solve for x
x = 16,842,361,728.52/85,891.13 - Step 6: Final answer
x = 196,089.66
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.