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Finding the Fourth Proportional to 134,138.60, 201,079.90 and 49,876.20

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Solution

The fourth proportional to 134,138.60, 201,079.90 and 49,876.20 is: 74,766.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,138.60 : 201,079.90 = 49,876.20 : x
  2. Step 2: Convert to fraction form
    134,138.60/201,079.90 = 49,876.20/x
  3. Step 3: Cross multiply
    134,138.60x = 201,079.90 × 49,876.20
  4. Step 4: Simplify right side
    134,138.60x = 10,029,101,308.38
  5. Step 5: Solve for x
    x = 10,029,101,308.38/134,138.60
  6. Step 6: Final answer
    x = 74,766.71

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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.