Home / 126,872.76-175,084.42-70,287.78

Finding the Fourth Proportional to 126,872.76, 175,084.42 and 70,287.78

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Solution

The fourth proportional to 126,872.76, 175,084.42 and 70,287.78 is: 96,997.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,872.76 : 175,084.42 = 70,287.78 : x
  2. Step 2: Convert to fraction form
    126,872.76/175,084.42 = 70,287.78/x
  3. Step 3: Cross multiply
    126,872.76x = 175,084.42 × 70,287.78
  4. Step 4: Simplify right side
    126,872.76x = 12,306,295,194.39
  5. Step 5: Solve for x
    x = 12,306,295,194.39/126,872.76
  6. Step 6: Final answer
    x = 96,997.14

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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.