Finding the Fourth Proportional to 156,023.50, 215,311.26 and 84,402.49
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Solution
The fourth proportional to 156,023.50, 215,311.26 and 84,402.49 is: 116,474.80
Step by Step Solution
- Step 1: Write the proportion equation
156,023.50 : 215,311.26 = 84,402.49 : x - Step 2: Convert to fraction form
156,023.50/215,311.26 = 84,402.49/x - Step 3: Cross multiply
156,023.50x = 215,311.26 × 84,402.49 - Step 4: Simplify right side
156,023.50x = 18,172,806,469.04 - Step 5: Solve for x
x = 18,172,806,469.04/156,023.50 - Step 6: Final answer
x = 116,474.80
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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.