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Finding the Fourth Proportional to 126.07, 188.90 and 44.87

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Solution

The fourth proportional to 126.07, 188.90 and 44.87 is: 67.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    126.07 : 188.90 = 44.87 : x
  2. Step 2: Convert to fraction form
    126.07/188.90 = 44.87/x
  3. Step 3: Cross multiply
    126.07x = 188.90 × 44.87
  4. Step 4: Simplify right side
    126.07x = 8,475.94
  5. Step 5: Solve for x
    x = 8,475.94/126.07
  6. Step 6: Final answer
    x = 67.23

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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.