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Finding the Third Proportional to 108,716.25 and 172,956.38

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Solution

The third proportional to 108,716.25 and 172,956.38 is: 275,155.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,716.25 : 172,956.38 = 172,956.38 : x
  2. Step 2: Convert to fraction form
    108,716.25/172,956.38 = 172,956.38/x
  3. Step 3: Cross multiply
    108,716.25x = 172,956.38 × 172,956.38
  4. Step 4: Simplify right side
    108,716.25x = 29,913,907,653.14
  5. Step 5: Solve for x
    x = 29,913,907,653.14/108,716.25
  6. Step 6: Final answer
    x = 275,155.81

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.