Finding the Fourth Proportional to 125,121.36, 172,624.56 and 71,367.68
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Solution
The fourth proportional to 125,121.36, 172,624.56 and 71,367.68 is: 98,462.92
Step by Step Solution
- Step 1: Write the proportion equation
125,121.36 : 172,624.56 = 71,367.68 : x - Step 2: Convert to fraction form
125,121.36/172,624.56 = 71,367.68/x - Step 3: Cross multiply
125,121.36x = 172,624.56 × 71,367.68 - Step 4: Simplify right side
125,121.36x = 12,319,814,358.22 - Step 5: Solve for x
x = 12,319,814,358.22/125,121.36 - Step 6: Final answer
x = 98,462.92
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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.