Finding the Fourth Proportional to 156,279.24, 215,526.42 and 122,686.92
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Solution
The fourth proportional to 156,279.24, 215,526.42 and 122,686.92 is: 169,198.88
Step by Step Solution
- Step 1: Write the proportion equation
156,279.24 : 215,526.42 = 122,686.92 : x - Step 2: Convert to fraction form
156,279.24/215,526.42 = 122,686.92/x - Step 3: Cross multiply
156,279.24x = 215,526.42 × 122,686.92 - Step 4: Simplify right side
156,279.24x = 26,442,272,648.43 - Step 5: Solve for x
x = 26,442,272,648.43/156,279.24 - Step 6: Final answer
x = 169,198.88
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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.