Home / 111,974.73-167,961.05-45,399.03

Finding the Fourth Proportional to 111,974.73, 167,961.05 and 45,399.03

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Solution

The fourth proportional to 111,974.73, 167,961.05 and 45,399.03 is: 68,098.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,974.73 : 167,961.05 = 45,399.03 : x
  2. Step 2: Convert to fraction form
    111,974.73/167,961.05 = 45,399.03/x
  3. Step 3: Cross multiply
    111,974.73x = 167,961.05 × 45,399.03
  4. Step 4: Simplify right side
    111,974.73x = 7,625,268,747.78
  5. Step 5: Solve for x
    x = 7,625,268,747.78/111,974.73
  6. Step 6: Final answer
    x = 68,098.12

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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.