Home / 126,512.82-189,788.67-42,246.90

Finding the Fourth Proportional to 126,512.82, 189,788.67 and 42,246.90

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Solution

The fourth proportional to 126,512.82, 189,788.67 and 42,246.90 is: 63,376.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,512.82 : 189,788.67 = 42,246.90 : x
  2. Step 2: Convert to fraction form
    126,512.82/189,788.67 = 42,246.90/x
  3. Step 3: Cross multiply
    126,512.82x = 189,788.67 × 42,246.90
  4. Step 4: Simplify right side
    126,512.82x = 8,017,982,962.62
  5. Step 5: Solve for x
    x = 8,017,982,962.62/126,512.82
  6. Step 6: Final answer
    x = 63,376.84

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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.