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Finding the Fourth Proportional to 150,664.88, 207,902.39 and 90,233.97

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Solution

The fourth proportional to 150,664.88, 207,902.39 and 90,233.97 is: 124,513.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,664.88 : 207,902.39 = 90,233.97 : x
  2. Step 2: Convert to fraction form
    150,664.88/207,902.39 = 90,233.97/x
  3. Step 3: Cross multiply
    150,664.88x = 207,902.39 × 90,233.97
  4. Step 4: Simplify right side
    150,664.88x = 18,759,857,571.02
  5. Step 5: Solve for x
    x = 18,759,857,571.02/150,664.88
  6. Step 6: Final answer
    x = 124,513.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.