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Finding the Third Proportional to 69,690 and 105,183

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Solution

The third proportional to 69,690 and 105,183 is: 158,752.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,690 : 105,183 = 105,183 : x
  2. Step 2: Convert to fraction form
    69,690/105,183 = 105,183/x
  3. Step 3: Cross multiply
    69,690x = 105,183 × 105,183
  4. Step 4: Simplify right side
    69,690x = 11,063,463,489
  5. Step 5: Solve for x
    x = 11,063,463,489/69,690
  6. Step 6: Final answer
    x = 158,752.53

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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.