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Finding the Third Proportional to 69,868 and 98,768

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Solution

The third proportional to 69,868 and 98,768 is: 139,622.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,868 : 98,768 = 98,768 : x
  2. Step 2: Convert to fraction form
    69,868/98,768 = 98,768/x
  3. Step 3: Cross multiply
    69,868x = 98,768 × 98,768
  4. Step 4: Simplify right side
    69,868x = 9,755,117,824
  5. Step 5: Solve for x
    x = 9,755,117,824/69,868
  6. Step 6: Final answer
    x = 139,622.11

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.