Finding the Fourth Proportional to 134,881.20, 202,321.80 and 129,122.10
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Solution
The fourth proportional to 134,881.20, 202,321.80 and 129,122.10 is: 193,683.15
Step by Step Solution
- Step 1: Write the proportion equation
134,881.20 : 202,321.80 = 129,122.10 : x - Step 2: Convert to fraction form
134,881.20/202,321.80 = 129,122.10/x - Step 3: Cross multiply
134,881.20x = 202,321.80 × 129,122.10 - Step 4: Simplify right side
134,881.20x = 26,124,215,691.78 - Step 5: Solve for x
x = 26,124,215,691.78/134,881.20 - Step 6: Final answer
x = 193,683.15
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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.