Finding the Fourth Proportional to 123,536.17, 170,423.33 and 72,547.99
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Solution
The fourth proportional to 123,536.17, 170,423.33 and 72,547.99 is: 100,082.99
Step by Step Solution
- Step 1: Write the proportion equation
123,536.17 : 170,423.33 = 72,547.99 : x - Step 2: Convert to fraction form
123,536.17/170,423.33 = 72,547.99/x - Step 3: Cross multiply
123,536.17x = 170,423.33 × 72,547.99 - Step 4: Simplify right side
123,536.17x = 12,363,869,251.81 - Step 5: Solve for x
x = 12,363,869,251.81/123,536.17 - Step 6: Final answer
x = 100,082.99
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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.