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Finding the Fourth Proportional to 154,729.80, 231,921.90 and 88,201.80

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Solution

The fourth proportional to 154,729.80, 231,921.90 and 88,201.80 is: 132,204.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,729.80 : 231,921.90 = 88,201.80 : x
  2. Step 2: Convert to fraction form
    154,729.80/231,921.90 = 88,201.80/x
  3. Step 3: Cross multiply
    154,729.80x = 231,921.90 × 88,201.80
  4. Step 4: Simplify right side
    154,729.80x = 20,455,929,039.42
  5. Step 5: Solve for x
    x = 20,455,929,039.42/154,729.80
  6. Step 6: Final answer
    x = 132,204.20

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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.