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Finding the Third Proportional to 64,681.88 and 140,754.38

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Solution

The third proportional to 64,681.88 and 140,754.38 is: 306,295.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,681.88 : 140,754.38 = 140,754.38 : x
  2. Step 2: Convert to fraction form
    64,681.88/140,754.38 = 140,754.38/x
  3. Step 3: Cross multiply
    64,681.88x = 140,754.38 × 140,754.38
  4. Step 4: Simplify right side
    64,681.88x = 19,811,794,081.64
  5. Step 5: Solve for x
    x = 19,811,794,081.64/64,681.88
  6. Step 6: Final answer
    x = 306,295.91

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.