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Finding the Third Proportional to 84,460 and 133,728

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Solution

The third proportional to 84,460 and 133,728 is: 211,735.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,460 : 133,728 = 133,728 : x
  2. Step 2: Convert to fraction form
    84,460/133,728 = 133,728/x
  3. Step 3: Cross multiply
    84,460x = 133,728 × 133,728
  4. Step 4: Simplify right side
    84,460x = 17,883,177,984
  5. Step 5: Solve for x
    x = 17,883,177,984/84,460
  6. Step 6: Final answer
    x = 211,735.47

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.