Home / 187,325.20-280,404.60-108,204.40

Finding the Fourth Proportional to 187,325.20, 280,404.60 and 108,204.40

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Solution

The fourth proportional to 187,325.20, 280,404.60 and 108,204.40 is: 161,969.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,325.20 : 280,404.60 = 108,204.40 : x
  2. Step 2: Convert to fraction form
    187,325.20/280,404.60 = 108,204.40/x
  3. Step 3: Cross multiply
    187,325.20x = 280,404.60 × 108,204.40
  4. Step 4: Simplify right side
    187,325.20x = 30,341,011,500.24
  5. Step 5: Solve for x
    x = 30,341,011,500.24/187,325.20
  6. Step 6: Final answer
    x = 161,969.73

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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.