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Finding the Fourth Proportional to 149,393.60, 206,072.51 and 88,923.86

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Solution

The fourth proportional to 149,393.60, 206,072.51 and 88,923.86 is: 122,660.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,393.60 : 206,072.51 = 88,923.86 : x
  2. Step 2: Convert to fraction form
    149,393.60/206,072.51 = 88,923.86/x
  3. Step 3: Cross multiply
    149,393.60x = 206,072.51 × 88,923.86
  4. Step 4: Simplify right side
    149,393.60x = 18,324,763,766.58
  5. Step 5: Solve for x
    x = 18,324,763,766.58/149,393.60
  6. Step 6: Final answer
    x = 122,660.97

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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.