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Finding the Third Proportional to 70,070 and 108,790

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Solution

The third proportional to 70,070 and 108,790 is: 168,906.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,070 : 108,790 = 108,790 : x
  2. Step 2: Convert to fraction form
    70,070/108,790 = 108,790/x
  3. Step 3: Cross multiply
    70,070x = 108,790 × 108,790
  4. Step 4: Simplify right side
    70,070x = 11,835,264,100
  5. Step 5: Solve for x
    x = 11,835,264,100/70,070
  6. Step 6: Final answer
    x = 168,906.30

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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.