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Finding the Fourth Proportional to 133,305.91, 200,009.37 and 80,035.09

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Solution

The fourth proportional to 133,305.91, 200,009.37 and 80,035.09 is: 120,082.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,305.91 : 200,009.37 = 80,035.09 : x
  2. Step 2: Convert to fraction form
    133,305.91/200,009.37 = 80,035.09/x
  3. Step 3: Cross multiply
    133,305.91x = 200,009.37 × 80,035.09
  4. Step 4: Simplify right side
    133,305.91x = 16,007,767,928.79
  5. Step 5: Solve for x
    x = 16,007,767,928.79/133,305.91
  6. Step 6: Final answer
    x = 120,082.96

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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.