Home / 133,439.68-184,269.20-85,776.04

Finding the Fourth Proportional to 133,439.68, 184,269.20 and 85,776.04

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Solution

The fourth proportional to 133,439.68, 184,269.20 and 85,776.04 is: 118,449.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,439.68 : 184,269.20 = 85,776.04 : x
  2. Step 2: Convert to fraction form
    133,439.68/184,269.20 = 85,776.04/x
  3. Step 3: Cross multiply
    133,439.68x = 184,269.20 × 85,776.04
  4. Step 4: Simplify right side
    133,439.68x = 15,805,882,269.97
  5. Step 5: Solve for x
    x = 15,805,882,269.97/133,439.68
  6. Step 6: Final answer
    x = 118,449.64

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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.