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Finding the Fourth Proportional to 132.85, 183.34 and 116.45

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Solution

The fourth proportional to 132.85, 183.34 and 116.45 is: 160.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    132.85 : 183.34 = 116.45 : x
  2. Step 2: Convert to fraction form
    132.85/183.34 = 116.45/x
  3. Step 3: Cross multiply
    132.85x = 183.34 × 116.45
  4. Step 4: Simplify right side
    132.85x = 21,349.94
  5. Step 5: Solve for x
    x = 21,349.94/132.85
  6. Step 6: Final answer
    x = 160.71

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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.