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Finding the Third Proportional to 68,796.75 and 140,509.50

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Solution

The third proportional to 68,796.75 and 140,509.50 is: 286,974.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,796.75 : 140,509.50 = 140,509.50 : x
  2. Step 2: Convert to fraction form
    68,796.75/140,509.50 = 140,509.50/x
  3. Step 3: Cross multiply
    68,796.75x = 140,509.50 × 140,509.50
  4. Step 4: Simplify right side
    68,796.75x = 19,742,919,590.25
  5. Step 5: Solve for x
    x = 19,742,919,590.25/68,796.75
  6. Step 6: Final answer
    x = 286,974.60

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.