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Finding the Fourth Proportional to 107.75, 148.33 and 92.93

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Solution

The fourth proportional to 107.75, 148.33 and 92.93 is: 127.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    107.75 : 148.33 = 92.93 : x
  2. Step 2: Convert to fraction form
    107.75/148.33 = 92.93/x
  3. Step 3: Cross multiply
    107.75x = 148.33 × 92.93
  4. Step 4: Simplify right side
    107.75x = 13,784.52
  5. Step 5: Solve for x
    x = 13,784.52/107.75
  6. Step 6: Final answer
    x = 127.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.