Home / 129,932.40-194,898.60-106,312.80

Finding the Fourth Proportional to 129,932.40, 194,898.60 and 106,312.80

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Solution

The fourth proportional to 129,932.40, 194,898.60 and 106,312.80 is: 159,469.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,932.40 : 194,898.60 = 106,312.80 : x
  2. Step 2: Convert to fraction form
    129,932.40/194,898.60 = 106,312.80/x
  3. Step 3: Cross multiply
    129,932.40x = 194,898.60 × 106,312.80
  4. Step 4: Simplify right side
    129,932.40x = 20,720,215,882.08
  5. Step 5: Solve for x
    x = 20,720,215,882.08/129,932.40
  6. Step 6: Final answer
    x = 159,469.20

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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.