Home / 126,251.92-189,355.44-42,003.76

Finding the Fourth Proportional to 126,251.92, 189,355.44 and 42,003.76

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Solution

The fourth proportional to 126,251.92, 189,355.44 and 42,003.76 is: 62,998.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,251.92 : 189,355.44 = 42,003.76 : x
  2. Step 2: Convert to fraction form
    126,251.92/189,355.44 = 42,003.76/x
  3. Step 3: Cross multiply
    126,251.92x = 189,355.44 × 42,003.76
  4. Step 4: Simplify right side
    126,251.92x = 7,953,640,456.45
  5. Step 5: Solve for x
    x = 7,953,640,456.45/126,251.92
  6. Step 6: Final answer
    x = 62,998.17

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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.