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Finding the Fourth Proportional to 136,750.62, 205,081.58 and 45,541.73

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Solution

The fourth proportional to 136,750.62, 205,081.58 and 45,541.73 is: 68,297.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,750.62 : 205,081.58 = 45,541.73 : x
  2. Step 2: Convert to fraction form
    136,750.62/205,081.58 = 45,541.73/x
  3. Step 3: Cross multiply
    136,750.62x = 205,081.58 × 45,541.73
  4. Step 4: Simplify right side
    136,750.62x = 9,339,770,599.05
  5. Step 5: Solve for x
    x = 9,339,770,599.05/136,750.62
  6. Step 6: Final answer
    x = 68,297.83

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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.