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Finding the Fourth Proportional to 126.09, 188.01 and 119.34

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Solution

The fourth proportional to 126.09, 188.01 and 119.34 is: 177.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    126.09 : 188.01 = 119.34 : x
  2. Step 2: Convert to fraction form
    126.09/188.01 = 119.34/x
  3. Step 3: Cross multiply
    126.09x = 188.01 × 119.34
  4. Step 4: Simplify right side
    126.09x = 22,437.11
  5. Step 5: Solve for x
    x = 22,437.11/126.09
  6. Step 6: Final answer
    x = 177.95

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.