Finding the Fourth Proportional to 168,422.31, 252,414.07 and 68,465.75
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Solution
The fourth proportional to 168,422.31, 252,414.07 and 68,465.75 is: 102,609.44
Step by Step Solution
- Step 1: Write the proportion equation
168,422.31 : 252,414.07 = 68,465.75 : x - Step 2: Convert to fraction form
168,422.31/252,414.07 = 68,465.75/x - Step 3: Cross multiply
168,422.31x = 252,414.07 × 68,465.75 - Step 4: Simplify right side
168,422.31x = 17,281,718,613.10 - Step 5: Solve for x
x = 17,281,718,613.10/168,422.31 - Step 6: Final answer
x = 102,609.44
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.