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Finding the Fourth Proportional to 126.59, 190.02 and 92.37

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Solution

The fourth proportional to 126.59, 190.02 and 92.37 is: 138.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    126.59 : 190.02 = 92.37 : x
  2. Step 2: Convert to fraction form
    126.59/190.02 = 92.37/x
  3. Step 3: Cross multiply
    126.59x = 190.02 × 92.37
  4. Step 4: Simplify right side
    126.59x = 17,552.15
  5. Step 5: Solve for x
    x = 17,552.15/126.59
  6. Step 6: Final answer
    x = 138.66

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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.