Finding the Fourth Proportional to 99,165.05, 136,833.99 and 58,331.03
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Solution
The fourth proportional to 99,165.05, 136,833.99 and 58,331.03 is: 80,488.71
Step by Step Solution
- Step 1: Write the proportion equation
99,165.05 : 136,833.99 = 58,331.03 : x - Step 2: Convert to fraction form
99,165.05/136,833.99 = 58,331.03/x - Step 3: Cross multiply
99,165.05x = 136,833.99 × 58,331.03 - Step 4: Simplify right side
99,165.05x = 7,981,666,891.54 - Step 5: Solve for x
x = 7,981,666,891.54/99,165.05 - Step 6: Final answer
x = 80,488.71
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.