Finding the Fourth Proportional to 156,279.88, 234,107.16 and 71,924.46
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Solution
The fourth proportional to 156,279.88, 234,107.16 and 71,924.46 is: 107,742.79
Step by Step Solution
- Step 1: Write the proportion equation
156,279.88 : 234,107.16 = 71,924.46 : x - Step 2: Convert to fraction form
156,279.88/234,107.16 = 71,924.46/x - Step 3: Cross multiply
156,279.88x = 234,107.16 × 71,924.46 - Step 4: Simplify right side
156,279.88x = 16,838,031,065.13 - Step 5: Solve for x
x = 16,838,031,065.13/156,279.88 - Step 6: Final answer
x = 107,742.79
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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.