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Finding the Third Proportional to 55,820 and 122,136

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Solution

The third proportional to 55,820 and 122,136 is: 267,237.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,820 : 122,136 = 122,136 : x
  2. Step 2: Convert to fraction form
    55,820/122,136 = 122,136/x
  3. Step 3: Cross multiply
    55,820x = 122,136 × 122,136
  4. Step 4: Simplify right side
    55,820x = 14,917,202,496
  5. Step 5: Solve for x
    x = 14,917,202,496/55,820
  6. Step 6: Final answer
    x = 267,237.59

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.