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Finding the Fourth Proportional to 129,950.73, 194,950.40 and 41,180.40

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Solution

The fourth proportional to 129,950.73, 194,950.40 and 41,180.40 is: 61,778.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,950.73 : 194,950.40 = 41,180.40 : x
  2. Step 2: Convert to fraction form
    129,950.73/194,950.40 = 41,180.40/x
  3. Step 3: Cross multiply
    129,950.73x = 194,950.40 × 41,180.40
  4. Step 4: Simplify right side
    129,950.73x = 8,028,135,246.26
  5. Step 5: Solve for x
    x = 8,028,135,246.26/129,950.73
  6. Step 6: Final answer
    x = 61,778.30

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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.