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Finding the Fourth Proportional to 162,168.20, 243,033.60 and 108,708.20

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Solution

The fourth proportional to 162,168.20, 243,033.60 and 108,708.20 is: 162,915.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,168.20 : 243,033.60 = 108,708.20 : x
  2. Step 2: Convert to fraction form
    162,168.20/243,033.60 = 108,708.20/x
  3. Step 3: Cross multiply
    162,168.20x = 243,033.60 × 108,708.20
  4. Step 4: Simplify right side
    162,168.20x = 26,419,745,195.52
  5. Step 5: Solve for x
    x = 26,419,745,195.52/162,168.20
  6. Step 6: Final answer
    x = 162,915.70

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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.