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Finding the Third Proportional to 108,717.75 and 172,958.63

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Solution

The third proportional to 108,717.75 and 172,958.63 is: 275,159.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,717.75 : 172,958.63 = 172,958.63 : x
  2. Step 2: Convert to fraction form
    108,717.75/172,958.63 = 172,958.63/x
  3. Step 3: Cross multiply
    108,717.75x = 172,958.63 × 172,958.63
  4. Step 4: Simplify right side
    108,717.75x = 29,914,685,961.89
  5. Step 5: Solve for x
    x = 29,914,685,961.89/108,717.75
  6. Step 6: Final answer
    x = 275,159.17

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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.