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Finding the Third Proportional to 86,076.75 and 120,999.75

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Solution

The third proportional to 86,076.75 and 120,999.75 is: 170,091.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,076.75 : 120,999.75 = 120,999.75 : x
  2. Step 2: Convert to fraction form
    86,076.75/120,999.75 = 120,999.75/x
  3. Step 3: Cross multiply
    86,076.75x = 120,999.75 × 120,999.75
  4. Step 4: Simplify right side
    86,076.75x = 14,640,939,500.06
  5. Step 5: Solve for x
    x = 14,640,939,500.06/86,076.75
  6. Step 6: Final answer
    x = 170,091.69

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.