Home / 126,122.52-189,178.31-31,350.71

Finding the Fourth Proportional to 126,122.52, 189,178.31 and 31,350.71

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Solution

The fourth proportional to 126,122.52, 189,178.31 and 31,350.71 is: 47,024.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,122.52 : 189,178.31 = 31,350.71 : x
  2. Step 2: Convert to fraction form
    126,122.52/189,178.31 = 31,350.71/x
  3. Step 3: Cross multiply
    126,122.52x = 189,178.31 × 31,350.71
  4. Step 4: Simplify right side
    126,122.52x = 5,930,873,467.59
  5. Step 5: Solve for x
    x = 5,930,873,467.59/126,122.52
  6. Step 6: Final answer
    x = 47,024.70

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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.