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Finding the Third Proportional to 69,279.75 and 104,415.75

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Solution

The third proportional to 69,279.75 and 104,415.75 is: 157,371.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,279.75 : 104,415.75 = 104,415.75 : x
  2. Step 2: Convert to fraction form
    69,279.75/104,415.75 = 104,415.75/x
  3. Step 3: Cross multiply
    69,279.75x = 104,415.75 × 104,415.75
  4. Step 4: Simplify right side
    69,279.75x = 10,902,648,848.06
  5. Step 5: Solve for x
    x = 10,902,648,848.06/69,279.75
  6. Step 6: Final answer
    x = 157,371.37

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.