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Finding the Third Proportional to 81,018.50 and 126,804.75

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Solution

The third proportional to 81,018.50 and 126,804.75 is: 198,466.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,018.50 : 126,804.75 = 126,804.75 : x
  2. Step 2: Convert to fraction form
    81,018.50/126,804.75 = 126,804.75/x
  3. Step 3: Cross multiply
    81,018.50x = 126,804.75 × 126,804.75
  4. Step 4: Simplify right side
    81,018.50x = 16,079,444,622.56
  5. Step 5: Solve for x
    x = 16,079,444,622.56/81,018.50
  6. Step 6: Final answer
    x = 198,466.33

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.