Home / 126,422.40-189,632.40-51,524.96

Finding the Fourth Proportional to 126,422.40, 189,632.40 and 51,524.96

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Solution

The fourth proportional to 126,422.40, 189,632.40 and 51,524.96 is: 77,286.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,422.40 : 189,632.40 = 51,524.96 : x
  2. Step 2: Convert to fraction form
    126,422.40/189,632.40 = 51,524.96/x
  3. Step 3: Cross multiply
    126,422.40x = 189,632.40 × 51,524.96
  4. Step 4: Simplify right side
    126,422.40x = 9,770,801,824.70
  5. Step 5: Solve for x
    x = 9,770,801,824.70/126,422.40
  6. Step 6: Final answer
    x = 77,286.95

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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.