Home / 126,680.10-189,901.35-47,847.30

Finding the Fourth Proportional to 126,680.10, 189,901.35 and 47,847.30

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Solution

The fourth proportional to 126,680.10, 189,901.35 and 47,847.30 is: 71,726.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,680.10 : 189,901.35 = 47,847.30 : x
  2. Step 2: Convert to fraction form
    126,680.10/189,901.35 = 47,847.30/x
  3. Step 3: Cross multiply
    126,680.10x = 189,901.35 × 47,847.30
  4. Step 4: Simplify right side
    126,680.10x = 9,086,266,863.86
  5. Step 5: Solve for x
    x = 9,086,266,863.86/126,680.10
  6. Step 6: Final answer
    x = 71,726.08

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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.