Finding the Fourth Proportional to 156,348.05, 215,834.70 and 104,753.99
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Solution
The fourth proportional to 156,348.05, 215,834.70 and 104,753.99 is: 144,610.35
Step by Step Solution
- Step 1: Write the proportion equation
156,348.05 : 215,834.70 = 104,753.99 : x - Step 2: Convert to fraction form
156,348.05/215,834.70 = 104,753.99/x - Step 3: Cross multiply
156,348.05x = 215,834.70 × 104,753.99 - Step 4: Simplify right side
156,348.05x = 22,609,546,545.04 - Step 5: Solve for x
x = 22,609,546,545.04/156,348.05 - Step 6: Final answer
x = 144,610.35
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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.