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Finding the Fourth Proportional to 133,351.80, 200,027.70 and 80,734.20

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Solution

The fourth proportional to 133,351.80, 200,027.70 and 80,734.20 is: 121,101.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,351.80 : 200,027.70 = 80,734.20 : x
  2. Step 2: Convert to fraction form
    133,351.80/200,027.70 = 80,734.20/x
  3. Step 3: Cross multiply
    133,351.80x = 200,027.70 × 80,734.20
  4. Step 4: Simplify right side
    133,351.80x = 16,149,076,337.34
  5. Step 5: Solve for x
    x = 16,149,076,337.34/133,351.80
  6. Step 6: Final answer
    x = 121,101.30

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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.