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Finding the Third Proportional to 109,172 and 163,087

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Solution

The third proportional to 109,172 and 163,087 is: 243,628.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,172 : 163,087 = 163,087 : x
  2. Step 2: Convert to fraction form
    109,172/163,087 = 163,087/x
  3. Step 3: Cross multiply
    109,172x = 163,087 × 163,087
  4. Step 4: Simplify right side
    109,172x = 26,597,369,569
  5. Step 5: Solve for x
    x = 26,597,369,569/109,172
  6. Step 6: Final answer
    x = 243,628.12

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.