Home / 187,337.20-280,422.60-108,216.40

Finding the Fourth Proportional to 187,337.20, 280,422.60 and 108,216.40

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Solution

The fourth proportional to 187,337.20, 280,422.60 and 108,216.40 is: 161,987.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,337.20 : 280,422.60 = 108,216.40 : x
  2. Step 2: Convert to fraction form
    187,337.20/280,422.60 = 108,216.40/x
  3. Step 3: Cross multiply
    187,337.20x = 280,422.60 × 108,216.40
  4. Step 4: Simplify right side
    187,337.20x = 30,346,324,250.64
  5. Step 5: Solve for x
    x = 30,346,324,250.64/187,337.20
  6. Step 6: Final answer
    x = 161,987.71

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1.5x scale

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.