Home / 187,115.42-280,483.97-80,568.86

Finding the Fourth Proportional to 187,115.42, 280,483.97 and 80,568.86

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Solution

The fourth proportional to 187,115.42, 280,483.97 and 80,568.86 is: 120,771.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,115.42 : 280,483.97 = 80,568.86 : x
  2. Step 2: Convert to fraction form
    187,115.42/280,483.97 = 80,568.86/x
  3. Step 3: Cross multiply
    187,115.42x = 280,483.97 × 80,568.86
  4. Step 4: Simplify right side
    187,115.42x = 22,598,273,711.17
  5. Step 5: Solve for x
    x = 22,598,273,711.17/187,115.42
  6. Step 6: Final answer
    x = 120,771.84

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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.