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Finding the Third Proportional to 79,689 and 124,368

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Solution

The third proportional to 79,689 and 124,368 is: 194,097.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,689 : 124,368 = 124,368 : x
  2. Step 2: Convert to fraction form
    79,689/124,368 = 124,368/x
  3. Step 3: Cross multiply
    79,689x = 124,368 × 124,368
  4. Step 4: Simplify right side
    79,689x = 15,467,399,424
  5. Step 5: Solve for x
    x = 15,467,399,424/79,689
  6. Step 6: Final answer
    x = 194,097.05

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.