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Finding the Third Proportional to 70,789 and 106,730

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Solution

The third proportional to 70,789 and 106,730 is: 160,918.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,789 : 106,730 = 106,730 : x
  2. Step 2: Convert to fraction form
    70,789/106,730 = 106,730/x
  3. Step 3: Cross multiply
    70,789x = 106,730 × 106,730
  4. Step 4: Simplify right side
    70,789x = 11,391,292,900
  5. Step 5: Solve for x
    x = 11,391,292,900/70,789
  6. Step 6: Final answer
    x = 160,918.97

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.