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Finding the Fourth Proportional to 135,321.60, 202,963.20 and 41,836.80

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Solution

The fourth proportional to 135,321.60, 202,963.20 and 41,836.80 is: 62,749.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,321.60 : 202,963.20 = 41,836.80 : x
  2. Step 2: Convert to fraction form
    135,321.60/202,963.20 = 41,836.80/x
  3. Step 3: Cross multiply
    135,321.60x = 202,963.20 × 41,836.80
  4. Step 4: Simplify right side
    135,321.60x = 8,491,330,805.76
  5. Step 5: Solve for x
    x = 8,491,330,805.76/135,321.60
  6. Step 6: Final answer
    x = 62,749.26

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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.