Home / 126,939.78-175,179.03-69,577.95

Finding the Fourth Proportional to 126,939.78, 175,179.03 and 69,577.95

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Solution

The fourth proportional to 126,939.78, 175,179.03 and 69,577.95 is: 96,018.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,939.78 : 175,179.03 = 69,577.95 : x
  2. Step 2: Convert to fraction form
    126,939.78/175,179.03 = 69,577.95/x
  3. Step 3: Cross multiply
    126,939.78x = 175,179.03 × 69,577.95
  4. Step 4: Simplify right side
    126,939.78x = 12,188,597,790.39
  5. Step 5: Solve for x
    x = 12,188,597,790.39/126,939.78
  6. Step 6: Final answer
    x = 96,018.74

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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.