Home / 165.11-227.75-131.90

Finding the Fourth Proportional to 165.11, 227.75 and 131.90

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Solution

The fourth proportional to 165.11, 227.75 and 131.90 is: 181.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    165.11 : 227.75 = 131.90 : x
  2. Step 2: Convert to fraction form
    165.11/227.75 = 131.90/x
  3. Step 3: Cross multiply
    165.11x = 227.75 × 131.90
  4. Step 4: Simplify right side
    165.11x = 30,038.43
  5. Step 5: Solve for x
    x = 30,038.43/165.11
  6. Step 6: Final answer
    x = 181.94

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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.