Finding the Fourth Proportional to 132,257.06, 198,387.21 and 38,764.70
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Solution
The fourth proportional to 132,257.06, 198,387.21 and 38,764.70 is: 58,147.52
Step by Step Solution
- Step 1: Write the proportion equation
132,257.06 : 198,387.21 = 38,764.70 : x - Step 2: Convert to fraction form
132,257.06/198,387.21 = 38,764.70/x - Step 3: Cross multiply
132,257.06x = 198,387.21 × 38,764.70 - Step 4: Simplify right side
132,257.06x = 7,690,420,679.49 - Step 5: Solve for x
x = 7,690,420,679.49/132,257.06 - Step 6: Final answer
x = 58,147.52
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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.