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Finding the Third Proportional to 103,699 and 154,831

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Solution

The third proportional to 103,699 and 154,831 is: 231,175.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,699 : 154,831 = 154,831 : x
  2. Step 2: Convert to fraction form
    103,699/154,831 = 154,831/x
  3. Step 3: Cross multiply
    103,699x = 154,831 × 154,831
  4. Step 4: Simplify right side
    103,699x = 23,972,638,561
  5. Step 5: Solve for x
    x = 23,972,638,561/103,699
  6. Step 6: Final answer
    x = 231,175.21

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.