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Finding the Fourth Proportional to 101.83, 140.52 and 66.93

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Solution

The fourth proportional to 101.83, 140.52 and 66.93 is: 92.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    101.83 : 140.52 = 66.93 : x
  2. Step 2: Convert to fraction form
    101.83/140.52 = 66.93/x
  3. Step 3: Cross multiply
    101.83x = 140.52 × 66.93
  4. Step 4: Simplify right side
    101.83x = 9,405.52
  5. Step 5: Solve for x
    x = 9,405.52/101.83
  6. Step 6: Final answer
    x = 92.36

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