Finding the Fourth Proportional to 156,800.97, 216,387.18 and 85,182.12
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Solution
The fourth proportional to 156,800.97, 216,387.18 and 85,182.12 is: 117,552.33
Step by Step Solution
- Step 1: Write the proportion equation
156,800.97 : 216,387.18 = 85,182.12 : x - Step 2: Convert to fraction form
156,800.97/216,387.18 = 85,182.12/x - Step 3: Cross multiply
156,800.97x = 216,387.18 × 85,182.12 - Step 4: Simplify right side
156,800.97x = 18,432,318,733.22 - Step 5: Solve for x
x = 18,432,318,733.22/156,800.97 - Step 6: Final answer
x = 117,552.33
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1.5x scale
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.