Home / 129,742.20-194,598.90-106,327.80

Finding the Fourth Proportional to 129,742.20, 194,598.90 and 106,327.80

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Solution

The fourth proportional to 129,742.20, 194,598.90 and 106,327.80 is: 159,479.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,742.20 : 194,598.90 = 106,327.80 : x
  2. Step 2: Convert to fraction form
    129,742.20/194,598.90 = 106,327.80/x
  3. Step 3: Cross multiply
    129,742.20x = 194,598.90 × 106,327.80
  4. Step 4: Simplify right side
    129,742.20x = 20,691,272,919.42
  5. Step 5: Solve for x
    x = 20,691,272,919.42/129,742.20
  6. Step 6: Final answer
    x = 159,479.90

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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.