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Finding the Third Proportional to 63,109.13 and 139,335.19

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Solution

The third proportional to 63,109.13 and 139,335.19 is: 307,630.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,109.13 : 139,335.19 = 139,335.19 : x
  2. Step 2: Convert to fraction form
    63,109.13/139,335.19 = 139,335.19/x
  3. Step 3: Cross multiply
    63,109.13x = 139,335.19 × 139,335.19
  4. Step 4: Simplify right side
    63,109.13x = 19,414,294,475.66
  5. Step 5: Solve for x
    x = 19,414,294,475.66/63,109.13
  6. Step 6: Final answer
    x = 307,630.54

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Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.