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Finding the Third Proportional to 120,379.50 and 161,048.25

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Solution

The third proportional to 120,379.50 and 161,048.25 is: 215,456.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,379.50 : 161,048.25 = 161,048.25 : x
  2. Step 2: Convert to fraction form
    120,379.50/161,048.25 = 161,048.25/x
  3. Step 3: Cross multiply
    120,379.50x = 161,048.25 × 161,048.25
  4. Step 4: Simplify right side
    120,379.50x = 25,936,538,828.06
  5. Step 5: Solve for x
    x = 25,936,538,828.06/120,379.50
  6. Step 6: Final answer
    x = 215,456.44

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.