Finding the Fourth Proportional to 139,761.97, 209,249.26 and 125,590.21
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Solution
The fourth proportional to 139,761.97, 209,249.26 and 125,590.21 is: 188,031.54
Step by Step Solution
- Step 1: Write the proportion equation
139,761.97 : 209,249.26 = 125,590.21 : x - Step 2: Convert to fraction form
139,761.97/209,249.26 = 125,590.21/x - Step 3: Cross multiply
139,761.97x = 209,249.26 × 125,590.21 - Step 4: Simplify right side
139,761.97x = 26,279,658,505.74 - Step 5: Solve for x
x = 26,279,658,505.74/139,761.97 - Step 6: Final answer
x = 188,031.54
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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.