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Finding the Third Proportional to 66,108 and 100,710

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Solution

The third proportional to 66,108 and 100,710 is: 153,423.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,108 : 100,710 = 100,710 : x
  2. Step 2: Convert to fraction form
    66,108/100,710 = 100,710/x
  3. Step 3: Cross multiply
    66,108x = 100,710 × 100,710
  4. Step 4: Simplify right side
    66,108x = 10,142,504,100
  5. Step 5: Solve for x
    x = 10,142,504,100/66,108
  6. Step 6: Final answer
    x = 153,423.25

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.