Home / 129,301.20-193,951.80-66,096.90

Finding the Fourth Proportional to 129,301.20, 193,951.80 and 66,096.90

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Solution

The fourth proportional to 129,301.20, 193,951.80 and 66,096.90 is: 99,145.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,301.20 : 193,951.80 = 66,096.90 : x
  2. Step 2: Convert to fraction form
    129,301.20/193,951.80 = 66,096.90/x
  3. Step 3: Cross multiply
    129,301.20x = 193,951.80 × 66,096.90
  4. Step 4: Simplify right side
    129,301.20x = 12,819,612,729.42
  5. Step 5: Solve for x
    x = 12,819,612,729.42/129,301.20
  6. Step 6: Final answer
    x = 99,145.35

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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.