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Finding the Third Proportional to 66,984.50 and 133,969.50

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Solution

The third proportional to 66,984.50 and 133,969.50 is: 267,940.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,984.50 : 133,969.50 = 133,969.50 : x
  2. Step 2: Convert to fraction form
    66,984.50/133,969.50 = 133,969.50/x
  3. Step 3: Cross multiply
    66,984.50x = 133,969.50 × 133,969.50
  4. Step 4: Simplify right side
    66,984.50x = 17,947,826,930.25
  5. Step 5: Solve for x
    x = 17,947,826,930.25/66,984.50
  6. Step 6: Final answer
    x = 267,940.00

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Why These Related Problems?

These problems maintain the same ratio (2.00) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.