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Finding the Third Proportional to 79,242 and 118,872

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Solution

The third proportional to 79,242 and 118,872 is: 178,321.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,242 : 118,872 = 118,872 : x
  2. Step 2: Convert to fraction form
    79,242/118,872 = 118,872/x
  3. Step 3: Cross multiply
    79,242x = 118,872 × 118,872
  4. Step 4: Simplify right side
    79,242x = 14,130,552,384
  5. Step 5: Solve for x
    x = 14,130,552,384/79,242
  6. Step 6: Final answer
    x = 178,321.50

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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.