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Finding the Third Proportional to 77,372 and 104,388

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Solution

The third proportional to 77,372 and 104,388 is: 140,837.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,372 : 104,388 = 104,388 : x
  2. Step 2: Convert to fraction form
    77,372/104,388 = 104,388/x
  3. Step 3: Cross multiply
    77,372x = 104,388 × 104,388
  4. Step 4: Simplify right side
    77,372x = 10,896,854,544
  5. Step 5: Solve for x
    x = 10,896,854,544/77,372
  6. Step 6: Final answer
    x = 140,837.18

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.