Home / 129,862.53-194,815.26-45,600.78

Finding the Fourth Proportional to 129,862.53, 194,815.26 and 45,600.78

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Solution

The fourth proportional to 129,862.53, 194,815.26 and 45,600.78 is: 68,408.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,862.53 : 194,815.26 = 45,600.78 : x
  2. Step 2: Convert to fraction form
    129,862.53/194,815.26 = 45,600.78/x
  3. Step 3: Cross multiply
    129,862.53x = 194,815.26 × 45,600.78
  4. Step 4: Simplify right side
    129,862.53x = 8,883,727,811.90
  5. Step 5: Solve for x
    x = 8,883,727,811.90/129,862.53
  6. Step 6: Final answer
    x = 68,408.71

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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.