Home / 126,456.88-189,629.89-47,515.70

Finding the Fourth Proportional to 126,456.88, 189,629.89 and 47,515.70

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Solution

The fourth proportional to 126,456.88, 189,629.89 and 47,515.70 is: 71,252.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,456.88 : 189,629.89 = 47,515.70 : x
  2. Step 2: Convert to fraction form
    126,456.88/189,629.89 = 47,515.70/x
  3. Step 3: Cross multiply
    126,456.88x = 189,629.89 × 47,515.70
  4. Step 4: Simplify right side
    126,456.88x = 9,010,396,964.27
  5. Step 5: Solve for x
    x = 9,010,396,964.27/126,456.88
  6. Step 6: Final answer
    x = 71,252.72

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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.