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Finding the Third Proportional to 74,078 and 120,351

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Solution

The third proportional to 74,078 and 120,351 is: 195,528.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,078 : 120,351 = 120,351 : x
  2. Step 2: Convert to fraction form
    74,078/120,351 = 120,351/x
  3. Step 3: Cross multiply
    74,078x = 120,351 × 120,351
  4. Step 4: Simplify right side
    74,078x = 14,484,363,201
  5. Step 5: Solve for x
    x = 14,484,363,201/74,078
  6. Step 6: Final answer
    x = 195,528.54

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Why These Related Problems?

These problems maintain the same ratio (1.62) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.