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Finding the Third Proportional to 62,749.69 and 128,557.13

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Solution

The third proportional to 62,749.69 and 128,557.13 is: 263,378.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,749.69 : 128,557.13 = 128,557.13 : x
  2. Step 2: Convert to fraction form
    62,749.69/128,557.13 = 128,557.13/x
  3. Step 3: Cross multiply
    62,749.69x = 128,557.13 × 128,557.13
  4. Step 4: Simplify right side
    62,749.69x = 16,526,934,388.27
  5. Step 5: Solve for x
    x = 16,526,934,388.27/62,749.69
  6. Step 6: Final answer
    x = 263,378.75

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.