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Finding the Third Proportional to 70,828 and 106,407

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Solution

The third proportional to 70,828 and 106,407 is: 159,858.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,828 : 106,407 = 106,407 : x
  2. Step 2: Convert to fraction form
    70,828/106,407 = 106,407/x
  3. Step 3: Cross multiply
    70,828x = 106,407 × 106,407
  4. Step 4: Simplify right side
    70,828x = 11,322,449,649
  5. Step 5: Solve for x
    x = 11,322,449,649/70,828
  6. Step 6: Final answer
    x = 159,858.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.