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Finding the Fourth Proportional to 149,123.44, 205,722.56 and 88,659.80

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Solution

The fourth proportional to 149,123.44, 205,722.56 and 88,659.80 is: 122,310.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,123.44 : 205,722.56 = 88,659.80 : x
  2. Step 2: Convert to fraction form
    149,123.44/205,722.56 = 88,659.80/x
  3. Step 3: Cross multiply
    149,123.44x = 205,722.56 × 88,659.80
  4. Step 4: Simplify right side
    149,123.44x = 18,239,321,025.09
  5. Step 5: Solve for x
    x = 18,239,321,025.09/149,123.44
  6. Step 6: Final answer
    x = 122,310.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.