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Finding the Third Proportional to 86,079 and 121,003

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Solution

The third proportional to 86,079 and 121,003 is: 170,096.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,079 : 121,003 = 121,003 : x
  2. Step 2: Convert to fraction form
    86,079/121,003 = 121,003/x
  3. Step 3: Cross multiply
    86,079x = 121,003 × 121,003
  4. Step 4: Simplify right side
    86,079x = 14,641,726,009
  5. Step 5: Solve for x
    x = 14,641,726,009/86,079
  6. Step 6: Final answer
    x = 170,096.38

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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.