Finding the Fourth Proportional to 156,620.92, 216,137.04 and 85,000.99
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Solution
The fourth proportional to 156,620.92, 216,137.04 and 85,000.99 is: 117,301.46
Step by Step Solution
- Step 1: Write the proportion equation
156,620.92 : 216,137.04 = 85,000.99 : x - Step 2: Convert to fraction form
156,620.92/216,137.04 = 85,000.99/x - Step 3: Cross multiply
156,620.92x = 216,137.04 × 85,000.99 - Step 4: Simplify right side
156,620.92x = 18,371,862,375.67 - Step 5: Solve for x
x = 18,371,862,375.67/156,620.92 - Step 6: Final answer
x = 117,301.46
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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.