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Finding the Third Proportional to 60,912 and 130,872

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Solution

The third proportional to 60,912 and 130,872 is: 281,184.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,912 : 130,872 = 130,872 : x
  2. Step 2: Convert to fraction form
    60,912/130,872 = 130,872/x
  3. Step 3: Cross multiply
    60,912x = 130,872 × 130,872
  4. Step 4: Simplify right side
    60,912x = 17,127,480,384
  5. Step 5: Solve for x
    x = 17,127,480,384/60,912
  6. Step 6: Final answer
    x = 281,184.01

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.