Finding the Fourth Proportional to 126,129.70, 189,240.68 and 58,693.90
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Solution
The fourth proportional to 126,129.70, 189,240.68 and 58,693.90 is: 88,062.32
Step by Step Solution
- Step 1: Write the proportion equation
126,129.70 : 189,240.68 = 58,693.90 : x - Step 2: Convert to fraction form
126,129.70/189,240.68 = 58,693.90/x - Step 3: Cross multiply
126,129.70x = 189,240.68 × 58,693.90 - Step 4: Simplify right side
126,129.70x = 11,107,273,547.85 - Step 5: Solve for x
x = 11,107,273,547.85/126,129.70 - Step 6: Final answer
x = 88,062.32
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.