Home / 126,867.20-190,171.20-74,249.60

Finding the Fourth Proportional to 126,867.20, 190,171.20 and 74,249.60

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Solution

The fourth proportional to 126,867.20, 190,171.20 and 74,249.60 is: 111,298.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,867.20 : 190,171.20 = 74,249.60 : x
  2. Step 2: Convert to fraction form
    126,867.20/190,171.20 = 74,249.60/x
  3. Step 3: Cross multiply
    126,867.20x = 190,171.20 × 74,249.60
  4. Step 4: Simplify right side
    126,867.20x = 14,120,135,531.52
  5. Step 5: Solve for x
    x = 14,120,135,531.52/126,867.20
  6. Step 6: Final answer
    x = 111,298.55

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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.