Home / 126,286.28-189,379.92-47,357.48

Finding the Fourth Proportional to 126,286.28, 189,379.92 and 47,357.48

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Solution

The fourth proportional to 126,286.28, 189,379.92 and 47,357.48 is: 71,017.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,286.28 : 189,379.92 = 47,357.48 : x
  2. Step 2: Convert to fraction form
    126,286.28/189,379.92 = 47,357.48/x
  3. Step 3: Cross multiply
    126,286.28x = 189,379.92 × 47,357.48
  4. Step 4: Simplify right side
    126,286.28x = 8,968,555,773.80
  5. Step 5: Solve for x
    x = 8,968,555,773.80/126,286.28
  6. Step 6: Final answer
    x = 71,017.66

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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.