Finding the Fourth Proportional to 156,373.50, 215,794.20 and 84,751.68
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Solution
The fourth proportional to 156,373.50, 215,794.20 and 84,751.68 is: 116,956.65
Step by Step Solution
- Step 1: Write the proportion equation
156,373.50 : 215,794.20 = 84,751.68 : x - Step 2: Convert to fraction form
156,373.50/215,794.20 = 84,751.68/x - Step 3: Cross multiply
156,373.50x = 215,794.20 × 84,751.68 - Step 4: Simplify right side
156,373.50x = 18,288,920,984.26 - Step 5: Solve for x
x = 18,288,920,984.26/156,373.50 - Step 6: Final answer
x = 116,956.65
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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.