Finding the Fourth Proportional to 125,170.23, 172,742.28 and 71,472.09
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Solution
The fourth proportional to 125,170.23, 172,742.28 and 71,472.09 is: 98,635.69
Step by Step Solution
- Step 1: Write the proportion equation
125,170.23 : 172,742.28 = 71,472.09 : x - Step 2: Convert to fraction form
125,170.23/172,742.28 = 71,472.09/x - Step 3: Cross multiply
125,170.23x = 172,742.28 × 71,472.09 - Step 4: Simplify right side
125,170.23x = 12,346,251,782.97 - Step 5: Solve for x
x = 12,346,251,782.97/125,170.23 - Step 6: Final answer
x = 98,635.69
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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.