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Finding the Third Proportional to 81,212 and 119,355

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Solution

The third proportional to 81,212 and 119,355 is: 175,412.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,212 : 119,355 = 119,355 : x
  2. Step 2: Convert to fraction form
    81,212/119,355 = 119,355/x
  3. Step 3: Cross multiply
    81,212x = 119,355 × 119,355
  4. Step 4: Simplify right side
    81,212x = 14,245,616,025
  5. Step 5: Solve for x
    x = 14,245,616,025/81,212
  6. Step 6: Final answer
    x = 175,412.70

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.