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Finding the Third Proportional to 42,249 and 90,737

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Solution

The third proportional to 42,249 and 90,737 is: 194,873.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,249 : 90,737 = 90,737 : x
  2. Step 2: Convert to fraction form
    42,249/90,737 = 90,737/x
  3. Step 3: Cross multiply
    42,249x = 90,737 × 90,737
  4. Step 4: Simplify right side
    42,249x = 8,233,203,169
  5. Step 5: Solve for x
    x = 8,233,203,169/42,249
  6. Step 6: Final answer
    x = 194,873.33

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.