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Finding the Fourth Proportional to 100,747.20, 151,393.60 and 54,033.60

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Solution

The fourth proportional to 100,747.20, 151,393.60 and 54,033.60 is: 81,196.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,747.20 : 151,393.60 = 54,033.60 : x
  2. Step 2: Convert to fraction form
    100,747.20/151,393.60 = 54,033.60/x
  3. Step 3: Cross multiply
    100,747.20x = 151,393.60 × 54,033.60
  4. Step 4: Simplify right side
    100,747.20x = 8,180,341,224.96
  5. Step 5: Solve for x
    x = 8,180,341,224.96/100,747.20
  6. Step 6: Final answer
    x = 81,196.71

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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.