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Finding the Third Proportional to 108,718.13 and 172,959.19

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Solution

The third proportional to 108,718.13 and 172,959.19 is: 275,160.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,718.13 : 172,959.19 = 172,959.19 : x
  2. Step 2: Convert to fraction form
    108,718.13/172,959.19 = 172,959.19/x
  3. Step 3: Cross multiply
    108,718.13x = 172,959.19 × 172,959.19
  4. Step 4: Simplify right side
    108,718.13x = 29,914,880,540.66
  5. Step 5: Solve for x
    x = 29,914,880,540.66/108,718.13
  6. Step 6: Final answer
    x = 275,160.01

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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.