Home / 126,425.34-189,665.71-47,539.57

Finding the Fourth Proportional to 126,425.34, 189,665.71 and 47,539.57

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Solution

The fourth proportional to 126,425.34, 189,665.71 and 47,539.57 is: 71,319.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,425.34 : 189,665.71 = 47,539.57 : x
  2. Step 2: Convert to fraction form
    126,425.34/189,665.71 = 47,539.57/x
  3. Step 3: Cross multiply
    126,425.34x = 189,665.71 × 47,539.57
  4. Step 4: Simplify right side
    126,425.34x = 9,016,626,660.73
  5. Step 5: Solve for x
    x = 9,016,626,660.73/126,425.34
  6. Step 6: Final answer
    x = 71,319.77

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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.