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Finding the Fourth Proportional to 107,997, 162,079.02 and 74,949

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Solution

The fourth proportional to 107,997, 162,079.02 and 74,949 is: 112,481.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,997 : 162,079.02 = 74,949 : x
  2. Step 2: Convert to fraction form
    107,997/162,079.02 = 74,949/x
  3. Step 3: Cross multiply
    107,997x = 162,079.02 × 74,949
  4. Step 4: Simplify right side
    107,997x = 12,147,660,469.98
  5. Step 5: Solve for x
    x = 12,147,660,469.98/107,997
  6. Step 6: Final answer
    x = 112,481.46

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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.