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Finding the Fourth Proportional to 129,142.66, 193,745.22 and 44,890.66

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Solution

The fourth proportional to 129,142.66, 193,745.22 and 44,890.66 is: 67,346.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,142.66 : 193,745.22 = 44,890.66 : x
  2. Step 2: Convert to fraction form
    129,142.66/193,745.22 = 44,890.66/x
  3. Step 3: Cross multiply
    129,142.66x = 193,745.22 × 44,890.66
  4. Step 4: Simplify right side
    129,142.66x = 8,697,350,797.65
  5. Step 5: Solve for x
    x = 8,697,350,797.65/129,142.66
  6. Step 6: Final answer
    x = 67,346.85

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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.