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Finding the Third Proportional to 81,201 and 119,340

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Solution

The third proportional to 81,201 and 119,340 is: 175,392.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,201 : 119,340 = 119,340 : x
  2. Step 2: Convert to fraction form
    81,201/119,340 = 119,340/x
  3. Step 3: Cross multiply
    81,201x = 119,340 × 119,340
  4. Step 4: Simplify right side
    81,201x = 14,242,035,600
  5. Step 5: Solve for x
    x = 14,242,035,600/81,201
  6. Step 6: Final answer
    x = 175,392.37

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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.