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Finding the Fourth Proportional to 133,863.68, 184,718.18 and 80,147.30

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Solution

The fourth proportional to 133,863.68, 184,718.18 and 80,147.30 is: 110,595.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,863.68 : 184,718.18 = 80,147.30 : x
  2. Step 2: Convert to fraction form
    133,863.68/184,718.18 = 80,147.30/x
  3. Step 3: Cross multiply
    133,863.68x = 184,718.18 × 80,147.30
  4. Step 4: Simplify right side
    133,863.68x = 14,804,663,387.91
  5. Step 5: Solve for x
    x = 14,804,663,387.91/133,863.68
  6. Step 6: Final answer
    x = 110,595.07

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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.