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Finding the Third Proportional to 86,739 and 130,107

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Solution

The third proportional to 86,739 and 130,107 is: 195,158.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,739 : 130,107 = 130,107 : x
  2. Step 2: Convert to fraction form
    86,739/130,107 = 130,107/x
  3. Step 3: Cross multiply
    86,739x = 130,107 × 130,107
  4. Step 4: Simplify right side
    86,739x = 16,927,831,449
  5. Step 5: Solve for x
    x = 16,927,831,449/86,739
  6. Step 6: Final answer
    x = 195,158.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.