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Finding the Fourth Proportional to 133.83, 183.75 and 131.79

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Solution

The fourth proportional to 133.83, 183.75 and 131.79 is: 180.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    133.83 : 183.75 = 131.79 : x
  2. Step 2: Convert to fraction form
    133.83/183.75 = 131.79/x
  3. Step 3: Cross multiply
    133.83x = 183.75 × 131.79
  4. Step 4: Simplify right side
    133.83x = 24,216.41
  5. Step 5: Solve for x
    x = 24,216.41/133.83
  6. Step 6: Final answer
    x = 180.95

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.