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Finding the Fourth Proportional to 133,305.80, 200,009.18 and 80,034.98

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Solution

The fourth proportional to 133,305.80, 200,009.18 and 80,034.98 is: 120,082.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,305.80 : 200,009.18 = 80,034.98 : x
  2. Step 2: Convert to fraction form
    133,305.80/200,009.18 = 80,034.98/x
  3. Step 3: Cross multiply
    133,305.80x = 200,009.18 × 80,034.98
  4. Step 4: Simplify right side
    133,305.80x = 16,007,729,921.16
  5. Step 5: Solve for x
    x = 16,007,729,921.16/133,305.80
  6. Step 6: Final answer
    x = 120,082.78

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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.