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Finding the Fourth Proportional to 111,360.38, 166,961.21 and 52,163.75

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Solution

The fourth proportional to 111,360.38, 166,961.21 and 52,163.75 is: 78,208.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,360.38 : 166,961.21 = 52,163.75 : x
  2. Step 2: Convert to fraction form
    111,360.38/166,961.21 = 52,163.75/x
  3. Step 3: Cross multiply
    111,360.38x = 166,961.21 × 52,163.75
  4. Step 4: Simplify right side
    111,360.38x = 8,709,322,974.72
  5. Step 5: Solve for x
    x = 8,709,322,974.72/111,360.38
  6. Step 6: Final answer
    x = 78,208.46

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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.