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Finding the Third Proportional to 72,908.75 and 104,259.75

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Solution

The third proportional to 72,908.75 and 104,259.75 is: 149,091.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,908.75 : 104,259.75 = 104,259.75 : x
  2. Step 2: Convert to fraction form
    72,908.75/104,259.75 = 104,259.75/x
  3. Step 3: Cross multiply
    72,908.75x = 104,259.75 × 104,259.75
  4. Step 4: Simplify right side
    72,908.75x = 10,870,095,470.06
  5. Step 5: Solve for x
    x = 10,870,095,470.06/72,908.75
  6. Step 6: Final answer
    x = 149,091.78

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.