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Finding the Third Proportional to 68,686 and 144,752

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Solution

The third proportional to 68,686 and 144,752 is: 305,056.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,686 : 144,752 = 144,752 : x
  2. Step 2: Convert to fraction form
    68,686/144,752 = 144,752/x
  3. Step 3: Cross multiply
    68,686x = 144,752 × 144,752
  4. Step 4: Simplify right side
    68,686x = 20,953,141,504
  5. Step 5: Solve for x
    x = 20,953,141,504/68,686
  6. Step 6: Final answer
    x = 305,056.95

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.