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Finding the Third Proportional to 74,150 and 114,912

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Solution

The third proportional to 74,150 and 114,912 is: 178,081.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,150 : 114,912 = 114,912 : x
  2. Step 2: Convert to fraction form
    74,150/114,912 = 114,912/x
  3. Step 3: Cross multiply
    74,150x = 114,912 × 114,912
  4. Step 4: Simplify right side
    74,150x = 13,204,767,744
  5. Step 5: Solve for x
    x = 13,204,767,744/74,150
  6. Step 6: Final answer
    x = 178,081.83

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.