Home / 126,387.13-189,434.88-47,451.01

Finding the Fourth Proportional to 126,387.13, 189,434.88 and 47,451.01

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Solution

The fourth proportional to 126,387.13, 189,434.88 and 47,451.01 is: 71,121.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,387.13 : 189,434.88 = 47,451.01 : x
  2. Step 2: Convert to fraction form
    126,387.13/189,434.88 = 47,451.01/x
  3. Step 3: Cross multiply
    126,387.13x = 189,434.88 × 47,451.01
  4. Step 4: Simplify right side
    126,387.13x = 8,988,876,385.23
  5. Step 5: Solve for x
    x = 8,988,876,385.23/126,387.13
  6. Step 6: Final answer
    x = 71,121.77

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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.