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Finding the Fourth Proportional to 72,149.26, 108,224.72 and 22,228.96

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Solution

The fourth proportional to 72,149.26, 108,224.72 and 22,228.96 is: 33,343.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,149.26 : 108,224.72 = 22,228.96 : x
  2. Step 2: Convert to fraction form
    72,149.26/108,224.72 = 22,228.96/x
  3. Step 3: Cross multiply
    72,149.26x = 108,224.72 × 22,228.96
  4. Step 4: Simplify right side
    72,149.26x = 2,405,722,319.62
  5. Step 5: Solve for x
    x = 2,405,722,319.62/72,149.26
  6. Step 6: Final answer
    x = 33,343.69

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1.5x scale

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.