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Finding the Third Proportional to 63,081.28 and 138,669.47

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Solution

The third proportional to 63,081.28 and 138,669.47 is: 304,832.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,081.28 : 138,669.47 = 138,669.47 : x
  2. Step 2: Convert to fraction form
    63,081.28/138,669.47 = 138,669.47/x
  3. Step 3: Cross multiply
    63,081.28x = 138,669.47 × 138,669.47
  4. Step 4: Simplify right side
    63,081.28x = 19,229,221,563.41
  5. Step 5: Solve for x
    x = 19,229,221,563.41/63,081.28
  6. Step 6: Final answer
    x = 304,832.45

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.