Finding the Fourth Proportional to 125,928.62, 173,818.13 and 100,611.26
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Solution
The fourth proportional to 125,928.62, 173,818.13 and 100,611.26 is: 138,872.81
Step by Step Solution
- Step 1: Write the proportion equation
125,928.62 : 173,818.13 = 100,611.26 : x - Step 2: Convert to fraction form
125,928.62/173,818.13 = 100,611.26/x - Step 3: Cross multiply
125,928.62x = 173,818.13 × 100,611.26 - Step 4: Simplify right side
125,928.62x = 17,488,060,887.13 - Step 5: Solve for x
x = 17,488,060,887.13/125,928.62 - Step 6: Final answer
x = 138,872.81
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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.