Finding the Fourth Proportional to 125,805.76, 173,611.94 and 69,217.14
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Solution
The fourth proportional to 125,805.76, 173,611.94 and 69,217.14 is: 95,519.65
Step by Step Solution
- Step 1: Write the proportion equation
125,805.76 : 173,611.94 = 69,217.14 : x - Step 2: Convert to fraction form
125,805.76/173,611.94 = 69,217.14/x - Step 3: Cross multiply
125,805.76x = 173,611.94 × 69,217.14 - Step 4: Simplify right side
125,805.76x = 12,016,921,956.65 - Step 5: Solve for x
x = 12,016,921,956.65/125,805.76 - Step 6: Final answer
x = 95,519.65
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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.