Home / 126,122.27-189,177.94-31,350.45

Finding the Fourth Proportional to 126,122.27, 189,177.94 and 31,350.45

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Solution

The fourth proportional to 126,122.27, 189,177.94 and 31,350.45 is: 47,024.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,122.27 : 189,177.94 = 31,350.45 : x
  2. Step 2: Convert to fraction form
    126,122.27/189,177.94 = 31,350.45/x
  3. Step 3: Cross multiply
    126,122.27x = 189,177.94 × 31,350.45
  4. Step 4: Simplify right side
    126,122.27x = 5,930,813,392.32
  5. Step 5: Solve for x
    x = 5,930,813,392.32/126,122.27
  6. Step 6: Final answer
    x = 47,024.32

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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.