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Finding the Third Proportional to 40,145 and 82,719.75

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Solution

The third proportional to 40,145 and 82,719.75 is: 170,446.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,145 : 82,719.75 = 82,719.75 : x
  2. Step 2: Convert to fraction form
    40,145/82,719.75 = 82,719.75/x
  3. Step 3: Cross multiply
    40,145x = 82,719.75 × 82,719.75
  4. Step 4: Simplify right side
    40,145x = 6,842,557,040.06
  5. Step 5: Solve for x
    x = 6,842,557,040.06/40,145
  6. Step 6: Final answer
    x = 170,446.06

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.