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Finding the Fourth Proportional to 136,771.66, 188,766.78 and 80,183.04

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Solution

The fourth proportional to 136,771.66, 188,766.78 and 80,183.04 is: 110,665.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,771.66 : 188,766.78 = 80,183.04 : x
  2. Step 2: Convert to fraction form
    136,771.66/188,766.78 = 80,183.04/x
  3. Step 3: Cross multiply
    136,771.66x = 188,766.78 × 80,183.04
  4. Step 4: Simplify right side
    136,771.66x = 15,135,894,019.27
  5. Step 5: Solve for x
    x = 15,135,894,019.27/136,771.66
  6. Step 6: Final answer
    x = 110,665.42

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1.5x scale

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.