Home / 126,551.97-189,763.25-42,281.73

Finding the Fourth Proportional to 126,551.97, 189,763.25 and 42,281.73

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Solution

The fourth proportional to 126,551.97, 189,763.25 and 42,281.73 is: 63,400.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,551.97 : 189,763.25 = 42,281.73 : x
  2. Step 2: Convert to fraction form
    126,551.97/189,763.25 = 42,281.73/x
  3. Step 3: Cross multiply
    126,551.97x = 189,763.25 × 42,281.73
  4. Step 4: Simplify right side
    126,551.97x = 8,023,518,289.01
  5. Step 5: Solve for x
    x = 8,023,518,289.01/126,551.97
  6. Step 6: Final answer
    x = 63,400.98

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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.