Home / 126,257.64-189,380.31-47,365.72

Finding the Fourth Proportional to 126,257.64, 189,380.31 and 47,365.72

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Solution

The fourth proportional to 126,257.64, 189,380.31 and 47,365.72 is: 71,046.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,257.64 : 189,380.31 = 47,365.72 : x
  2. Step 2: Convert to fraction form
    126,257.64/189,380.31 = 47,365.72/x
  3. Step 3: Cross multiply
    126,257.64x = 189,380.31 × 47,365.72
  4. Step 4: Simplify right side
    126,257.64x = 8,970,134,736.97
  5. Step 5: Solve for x
    x = 8,970,134,736.97/126,257.64
  6. Step 6: Final answer
    x = 71,046.27

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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.