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Finding the Fourth Proportional to 129,277.60, 194,002.80 and 59,120.80

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Solution

The fourth proportional to 129,277.60, 194,002.80 and 59,120.80 is: 88,720.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,277.60 : 194,002.80 = 59,120.80 : x
  2. Step 2: Convert to fraction form
    129,277.60/194,002.80 = 59,120.80/x
  3. Step 3: Cross multiply
    129,277.60x = 194,002.80 × 59,120.80
  4. Step 4: Simplify right side
    129,277.60x = 11,469,600,738.24
  5. Step 5: Solve for x
    x = 11,469,600,738.24/129,277.60
  6. Step 6: Final answer
    x = 88,720.71

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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.