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Finding the Third Proportional to 66,102 and 145,266

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Solution

The third proportional to 66,102 and 145,266 is: 319,237.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,102 : 145,266 = 145,266 : x
  2. Step 2: Convert to fraction form
    66,102/145,266 = 145,266/x
  3. Step 3: Cross multiply
    66,102x = 145,266 × 145,266
  4. Step 4: Simplify right side
    66,102x = 21,102,210,756
  5. Step 5: Solve for x
    x = 21,102,210,756/66,102
  6. Step 6: Final answer
    x = 319,237.10

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.