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Finding the Fourth Proportional to 154,614.80, 231,889.80 and 75,785.60

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Solution

The fourth proportional to 154,614.80, 231,889.80 and 75,785.60 is: 113,662.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,614.80 : 231,889.80 = 75,785.60 : x
  2. Step 2: Convert to fraction form
    154,614.80/231,889.80 = 75,785.60/x
  3. Step 3: Cross multiply
    154,614.80x = 231,889.80 × 75,785.60
  4. Step 4: Simplify right side
    154,614.80x = 17,573,907,626.88
  5. Step 5: Solve for x
    x = 17,573,907,626.88/154,614.80
  6. Step 6: Final answer
    x = 113,662.52

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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.