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Finding the Third Proportional to 68,445 and 102,389

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Solution

The third proportional to 68,445 and 102,389 is: 153,166.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,445 : 102,389 = 102,389 : x
  2. Step 2: Convert to fraction form
    68,445/102,389 = 102,389/x
  3. Step 3: Cross multiply
    68,445x = 102,389 × 102,389
  4. Step 4: Simplify right side
    68,445x = 10,483,507,321
  5. Step 5: Solve for x
    x = 10,483,507,321/68,445
  6. Step 6: Final answer
    x = 153,166.88

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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.