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Finding the Fourth Proportional to 111,037.60, 166,734.60 and 102,851.20

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Solution

The fourth proportional to 111,037.60, 166,734.60 and 102,851.20 is: 154,441.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,037.60 : 166,734.60 = 102,851.20 : x
  2. Step 2: Convert to fraction form
    111,037.60/166,734.60 = 102,851.20/x
  3. Step 3: Cross multiply
    111,037.60x = 166,734.60 × 102,851.20
  4. Step 4: Simplify right side
    111,037.60x = 17,148,853,691.52
  5. Step 5: Solve for x
    x = 17,148,853,691.52/111,037.60
  6. Step 6: Final answer
    x = 154,441.86

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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.