Finding the Fourth Proportional to 125,639.80, 173,380.98 and 69,049.96
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Solution
The fourth proportional to 125,639.80, 173,380.98 and 69,049.96 is: 95,287.88
Step by Step Solution
- Step 1: Write the proportion equation
125,639.80 : 173,380.98 = 69,049.96 : x - Step 2: Convert to fraction form
125,639.80/173,380.98 = 69,049.96/x - Step 3: Cross multiply
125,639.80x = 173,380.98 × 69,049.96 - Step 4: Simplify right side
125,639.80x = 11,971,949,733.76 - Step 5: Solve for x
x = 11,971,949,733.76/125,639.80 - Step 6: Final answer
x = 95,287.88
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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.