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Finding the Third Proportional to 81,576 and 120,848

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Solution

The third proportional to 81,576 and 120,848 is: 179,026.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,576 : 120,848 = 120,848 : x
  2. Step 2: Convert to fraction form
    81,576/120,848 = 120,848/x
  3. Step 3: Cross multiply
    81,576x = 120,848 × 120,848
  4. Step 4: Simplify right side
    81,576x = 14,604,239,104
  5. Step 5: Solve for x
    x = 14,604,239,104/81,576
  6. Step 6: Final answer
    x = 179,026.17

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.