Finding the Fourth Proportional to 132,129.14, 198,223.99 and 57,261.85
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Solution
The fourth proportional to 132,129.14, 198,223.99 and 57,261.85 is: 85,905.90
Step by Step Solution
- Step 1: Write the proportion equation
132,129.14 : 198,223.99 = 57,261.85 : x - Step 2: Convert to fraction form
132,129.14/198,223.99 = 57,261.85/x - Step 3: Cross multiply
132,129.14x = 198,223.99 × 57,261.85 - Step 4: Simplify right side
132,129.14x = 11,350,672,381.78 - Step 5: Solve for x
x = 11,350,672,381.78/132,129.14 - Step 6: Final answer
x = 85,905.90
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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.