Home / 157,940.22-217,408.28-137,761.97

Finding the Fourth Proportional to 157,940.22, 217,408.28 and 137,761.97

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Solution

The fourth proportional to 157,940.22, 217,408.28 and 137,761.97 is: 189,632.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,940.22 : 217,408.28 = 137,761.97 : x
  2. Step 2: Convert to fraction form
    157,940.22/217,408.28 = 137,761.97/x
  3. Step 3: Cross multiply
    157,940.22x = 217,408.28 × 137,761.97
  4. Step 4: Simplify right side
    157,940.22x = 29,950,591,171.26
  5. Step 5: Solve for x
    x = 29,950,591,171.26/157,940.22
  6. Step 6: Final answer
    x = 189,632.45

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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.