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Finding the Third Proportional to 68,991.50 and 101,215.75

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Solution

The third proportional to 68,991.50 and 101,215.75 is: 148,491.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,991.50 : 101,215.75 = 101,215.75 : x
  2. Step 2: Convert to fraction form
    68,991.50/101,215.75 = 101,215.75/x
  3. Step 3: Cross multiply
    68,991.50x = 101,215.75 × 101,215.75
  4. Step 4: Simplify right side
    68,991.50x = 10,244,628,048.06
  5. Step 5: Solve for x
    x = 10,244,628,048.06/68,991.50
  6. Step 6: Final answer
    x = 148,491.16

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.