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Finding the Third Proportional to 70,564 and 109,381

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Solution

The third proportional to 70,564 and 109,381 is: 169,551.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,564 : 109,381 = 109,381 : x
  2. Step 2: Convert to fraction form
    70,564/109,381 = 109,381/x
  3. Step 3: Cross multiply
    70,564x = 109,381 × 109,381
  4. Step 4: Simplify right side
    70,564x = 11,964,203,161
  5. Step 5: Solve for x
    x = 11,964,203,161/70,564
  6. Step 6: Final answer
    x = 169,551.09

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.