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Finding the Fourth Proportional to 134,902.60, 202,353.90 and 108,658.60

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Solution

The fourth proportional to 134,902.60, 202,353.90 and 108,658.60 is: 162,987.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,902.60 : 202,353.90 = 108,658.60 : x
  2. Step 2: Convert to fraction form
    134,902.60/202,353.90 = 108,658.60/x
  3. Step 3: Cross multiply
    134,902.60x = 202,353.90 × 108,658.60
  4. Step 4: Simplify right side
    134,902.60x = 21,987,491,478.54
  5. Step 5: Solve for x
    x = 21,987,491,478.54/134,902.60
  6. Step 6: Final answer
    x = 162,987.90

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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.