Home / 129,614.20-194,306.10-85,262.20

Finding the Fourth Proportional to 129,614.20, 194,306.10 and 85,262.20

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Solution

The fourth proportional to 129,614.20, 194,306.10 and 85,262.20 is: 127,817.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,614.20 : 194,306.10 = 85,262.20 : x
  2. Step 2: Convert to fraction form
    129,614.20/194,306.10 = 85,262.20/x
  3. Step 3: Cross multiply
    129,614.20x = 194,306.10 × 85,262.20
  4. Step 4: Simplify right side
    129,614.20x = 16,566,965,559.42
  5. Step 5: Solve for x
    x = 16,566,965,559.42/129,614.20
  6. Step 6: Final answer
    x = 127,817.52

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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.