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Finding the Fourth Proportional to 148.05, 204.28 and 95.65

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Solution

The fourth proportional to 148.05, 204.28 and 95.65 is: 131.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    148.05 : 204.28 = 95.65 : x
  2. Step 2: Convert to fraction form
    148.05/204.28 = 95.65/x
  3. Step 3: Cross multiply
    148.05x = 204.28 × 95.65
  4. Step 4: Simplify right side
    148.05x = 19,538.63
  5. Step 5: Solve for x
    x = 19,538.63/148.05
  6. Step 6: Final answer
    x = 131.97

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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.