Finding the Fourth Proportional to 156,791.92, 216,311.70 and 88,793.20
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Solution
The fourth proportional to 156,791.92, 216,311.70 and 88,793.20 is: 122,499.99
Step by Step Solution
- Step 1: Write the proportion equation
156,791.92 : 216,311.70 = 88,793.20 : x - Step 2: Convert to fraction form
156,791.92/216,311.70 = 88,793.20/x - Step 3: Cross multiply
156,791.92x = 216,311.70 × 88,793.20 - Step 4: Simplify right side
156,791.92x = 19,207,008,040.44 - Step 5: Solve for x
x = 19,207,008,040.44/156,791.92 - Step 6: Final answer
x = 122,499.99
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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.