Finding the Fourth Proportional to 115,706.26, 173,379.86 and 80,236.76
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Solution
The fourth proportional to 115,706.26, 173,379.86 and 80,236.76 is: 120,230.65
Step by Step Solution
- Step 1: Write the proportion equation
115,706.26 : 173,379.86 = 80,236.76 : x - Step 2: Convert to fraction form
115,706.26/173,379.86 = 80,236.76/x - Step 3: Cross multiply
115,706.26x = 173,379.86 × 80,236.76 - Step 4: Simplify right side
115,706.26x = 13,911,438,215.65 - Step 5: Solve for x
x = 13,911,438,215.65/115,706.26 - Step 6: Final answer
x = 120,230.65
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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.