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Finding the Third Proportional to 64,851.75 and 142,005.75

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Solution

The third proportional to 64,851.75 and 142,005.75 is: 310,949.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,851.75 : 142,005.75 = 142,005.75 : x
  2. Step 2: Convert to fraction form
    64,851.75/142,005.75 = 142,005.75/x
  3. Step 3: Cross multiply
    64,851.75x = 142,005.75 × 142,005.75
  4. Step 4: Simplify right side
    64,851.75x = 20,165,633,033.06
  5. Step 5: Solve for x
    x = 20,165,633,033.06/64,851.75
  6. Step 6: Final answer
    x = 310,949.71

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.