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Finding the Third Proportional to 83,396 and 122,888

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Solution

The third proportional to 83,396 and 122,888 is: 181,081.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,396 : 122,888 = 122,888 : x
  2. Step 2: Convert to fraction form
    83,396/122,888 = 122,888/x
  3. Step 3: Cross multiply
    83,396x = 122,888 × 122,888
  4. Step 4: Simplify right side
    83,396x = 15,101,460,544
  5. Step 5: Solve for x
    x = 15,101,460,544/83,396
  6. Step 6: Final answer
    x = 181,081.35

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.