Finding the Fourth Proportional to 115,147.26, 172,707.21 and 40,261.68
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Solution
The fourth proportional to 115,147.26, 172,707.21 and 40,261.68 is: 60,387.74
Step by Step Solution
- Step 1: Write the proportion equation
115,147.26 : 172,707.21 = 40,261.68 : x - Step 2: Convert to fraction form
115,147.26/172,707.21 = 40,261.68/x - Step 3: Cross multiply
115,147.26x = 172,707.21 × 40,261.68 - Step 4: Simplify right side
115,147.26x = 6,953,482,422.71 - Step 5: Solve for x
x = 6,953,482,422.71/115,147.26 - Step 6: Final answer
x = 60,387.74
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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.