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Finding the Third Proportional to 109,173 and 165,729

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Solution

The third proportional to 109,173 and 165,729 is: 251,583.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,173 : 165,729 = 165,729 : x
  2. Step 2: Convert to fraction form
    109,173/165,729 = 165,729/x
  3. Step 3: Cross multiply
    109,173x = 165,729 × 165,729
  4. Step 4: Simplify right side
    109,173x = 27,466,101,441
  5. Step 5: Solve for x
    x = 27,466,101,441/109,173
  6. Step 6: Final answer
    x = 251,583.28

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.