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Finding the Third Proportional to 74,869 and 113,197

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Solution

The third proportional to 74,869 and 113,197 is: 171,146.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,869 : 113,197 = 113,197 : x
  2. Step 2: Convert to fraction form
    74,869/113,197 = 113,197/x
  3. Step 3: Cross multiply
    74,869x = 113,197 × 113,197
  4. Step 4: Simplify right side
    74,869x = 12,813,560,809
  5. Step 5: Solve for x
    x = 12,813,560,809/74,869
  6. Step 6: Final answer
    x = 171,146.41

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.