Finding the Fourth Proportional to 125,267.76, 172,870.20 and 68,680.08
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Solution
The fourth proportional to 125,267.76, 172,870.20 and 68,680.08 is: 94,778.89
Step by Step Solution
- Step 1: Write the proportion equation
125,267.76 : 172,870.20 = 68,680.08 : x - Step 2: Convert to fraction form
125,267.76/172,870.20 = 68,680.08/x - Step 3: Cross multiply
125,267.76x = 172,870.20 × 68,680.08 - Step 4: Simplify right side
125,267.76x = 11,872,739,165.62 - Step 5: Solve for x
x = 11,872,739,165.62/125,267.76 - Step 6: Final answer
x = 94,778.89
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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.