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Finding the Fourth Proportional to 99,181.60, 148,772.40 and 36,839.20

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Solution

The fourth proportional to 99,181.60, 148,772.40 and 36,839.20 is: 55,258.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,181.60 : 148,772.40 = 36,839.20 : x
  2. Step 2: Convert to fraction form
    99,181.60/148,772.40 = 36,839.20/x
  3. Step 3: Cross multiply
    99,181.60x = 148,772.40 × 36,839.20
  4. Step 4: Simplify right side
    99,181.60x = 5,480,656,198.08
  5. Step 5: Solve for x
    x = 5,480,656,198.08/99,181.60
  6. Step 6: Final answer
    x = 55,258.80

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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.