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Finding the Fourth Proportional to 132.55, 182.93 and 74.33

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Solution

The fourth proportional to 132.55, 182.93 and 74.33 is: 102.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    132.55 : 182.93 = 74.33 : x
  2. Step 2: Convert to fraction form
    132.55/182.93 = 74.33/x
  3. Step 3: Cross multiply
    132.55x = 182.93 × 74.33
  4. Step 4: Simplify right side
    132.55x = 13,596.82
  5. Step 5: Solve for x
    x = 13,596.82/132.55
  6. Step 6: Final answer
    x = 102.58

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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.