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Finding the Fourth Proportional to 133,785, 184,652.10 and 80,082

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Solution

The fourth proportional to 133,785, 184,652.10 and 80,082 is: 110,530.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,785 : 184,652.10 = 80,082 : x
  2. Step 2: Convert to fraction form
    133,785/184,652.10 = 80,082/x
  3. Step 3: Cross multiply
    133,785x = 184,652.10 × 80,082
  4. Step 4: Simplify right side
    133,785x = 14,787,309,472.20
  5. Step 5: Solve for x
    x = 14,787,309,472.20/133,785
  6. Step 6: Final answer
    x = 110,530.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.