Home / 126,305.76-189,331.92-43,142.88

Finding the Fourth Proportional to 126,305.76, 189,331.92 and 43,142.88

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Solution

The fourth proportional to 126,305.76, 189,331.92 and 43,142.88 is: 64,671.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,305.76 : 189,331.92 = 43,142.88 : x
  2. Step 2: Convert to fraction form
    126,305.76/189,331.92 = 43,142.88/x
  3. Step 3: Cross multiply
    126,305.76x = 189,331.92 × 43,142.88
  4. Step 4: Simplify right side
    126,305.76x = 8,168,324,304.73
  5. Step 5: Solve for x
    x = 8,168,324,304.73/126,305.76
  6. Step 6: Final answer
    x = 64,671.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.