Home / 126,799.76-175,165.94-101,272.61

Finding the Fourth Proportional to 126,799.76, 175,165.94 and 101,272.61

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Solution

The fourth proportional to 126,799.76, 175,165.94 and 101,272.61 is: 139,901.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,799.76 : 175,165.94 = 101,272.61 : x
  2. Step 2: Convert to fraction form
    126,799.76/175,165.94 = 101,272.61/x
  3. Step 3: Cross multiply
    126,799.76x = 175,165.94 × 101,272.61
  4. Step 4: Simplify right side
    126,799.76x = 17,739,512,618.00
  5. Step 5: Solve for x
    x = 17,739,512,618.00/126,799.76
  6. Step 6: Final answer
    x = 139,901.78

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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.