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Finding the Fourth Proportional to 119.38, 163.75 and 117.37

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Solution

The fourth proportional to 119.38, 163.75 and 117.37 is: 160.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    119.38 : 163.75 = 117.37 : x
  2. Step 2: Convert to fraction form
    119.38/163.75 = 117.37/x
  3. Step 3: Cross multiply
    119.38x = 163.75 × 117.37
  4. Step 4: Simplify right side
    119.38x = 19,219.34
  5. Step 5: Solve for x
    x = 19,219.34/119.38
  6. Step 6: Final answer
    x = 160.99

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.