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Finding the Fourth Proportional to 136.14, 204.21 and 117.06

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Solution

The fourth proportional to 136.14, 204.21 and 117.06 is: 175.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    136.14 : 204.21 = 117.06 : x
  2. Step 2: Convert to fraction form
    136.14/204.21 = 117.06/x
  3. Step 3: Cross multiply
    136.14x = 204.21 × 117.06
  4. Step 4: Simplify right side
    136.14x = 23,904.82
  5. Step 5: Solve for x
    x = 23,904.82/136.14
  6. Step 6: Final answer
    x = 175.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.