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Finding the Fourth Proportional to 136.79, 188.45 and 95.27

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Solution

The fourth proportional to 136.79, 188.45 and 95.27 is: 131.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    136.79 : 188.45 = 95.27 : x
  2. Step 2: Convert to fraction form
    136.79/188.45 = 95.27/x
  3. Step 3: Cross multiply
    136.79x = 188.45 × 95.27
  4. Step 4: Simplify right side
    136.79x = 17,952.21
  5. Step 5: Solve for x
    x = 17,952.21/136.79
  6. Step 6: Final answer
    x = 131.24

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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.