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Finding the Fourth Proportional to 72,144.92, 108,229.23 and 22,223.93

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Solution

The fourth proportional to 72,144.92, 108,229.23 and 22,223.93 is: 33,339.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,144.92 : 108,229.23 = 22,223.93 : x
  2. Step 2: Convert to fraction form
    72,144.92/108,229.23 = 22,223.93/x
  3. Step 3: Cross multiply
    72,144.92x = 108,229.23 × 22,223.93
  4. Step 4: Simplify right side
    72,144.92x = 2,405,278,290.33
  5. Step 5: Solve for x
    x = 2,405,278,290.33/72,144.92
  6. Step 6: Final answer
    x = 33,339.54

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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.