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Finding the Third Proportional to 77,717.25 and 166,099.50

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Solution

The third proportional to 77,717.25 and 166,099.50 is: 354,992.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,717.25 : 166,099.50 = 166,099.50 : x
  2. Step 2: Convert to fraction form
    77,717.25/166,099.50 = 166,099.50/x
  3. Step 3: Cross multiply
    77,717.25x = 166,099.50 × 166,099.50
  4. Step 4: Simplify right side
    77,717.25x = 27,589,043,900.25
  5. Step 5: Solve for x
    x = 27,589,043,900.25/77,717.25
  6. Step 6: Final answer
    x = 354,992.54

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.