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Finding the Fourth Proportional to 154,023.60, 231,229.80 and 83,002.80

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Solution

The fourth proportional to 154,023.60, 231,229.80 and 83,002.80 is: 124,608.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,023.60 : 231,229.80 = 83,002.80 : x
  2. Step 2: Convert to fraction form
    154,023.60/231,229.80 = 83,002.80/x
  3. Step 3: Cross multiply
    154,023.60x = 231,229.80 × 83,002.80
  4. Step 4: Simplify right side
    154,023.60x = 19,192,720,843.44
  5. Step 5: Solve for x
    x = 19,192,720,843.44/154,023.60
  6. Step 6: Final answer
    x = 124,608.96

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1.5x scale

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.