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Finding the Fourth Proportional to 153,229.86, 229,353.22 and 81,974.26

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Solution

The fourth proportional to 153,229.86, 229,353.22 and 81,974.26 is: 122,698.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,229.86 : 229,353.22 = 81,974.26 : x
  2. Step 2: Convert to fraction form
    153,229.86/229,353.22 = 81,974.26/x
  3. Step 3: Cross multiply
    153,229.86x = 229,353.22 × 81,974.26
  4. Step 4: Simplify right side
    153,229.86x = 18,801,060,877.28
  5. Step 5: Solve for x
    x = 18,801,060,877.28/153,229.86
  6. Step 6: Final answer
    x = 122,698.41

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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.