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Finding the Third Proportional to 108,789 and 168,803

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Solution

The third proportional to 108,789 and 168,803 is: 261,924.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,789 : 168,803 = 168,803 : x
  2. Step 2: Convert to fraction form
    108,789/168,803 = 168,803/x
  3. Step 3: Cross multiply
    108,789x = 168,803 × 168,803
  4. Step 4: Simplify right side
    108,789x = 28,494,452,809
  5. Step 5: Solve for x
    x = 28,494,452,809/108,789
  6. Step 6: Final answer
    x = 261,924.03

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.