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Finding the Fourth Proportional to 101.40, 151.68 and 92.32

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Solution

The fourth proportional to 101.40, 151.68 and 92.32 is: 138.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    101.40 : 151.68 = 92.32 : x
  2. Step 2: Convert to fraction form
    101.40/151.68 = 92.32/x
  3. Step 3: Cross multiply
    101.40x = 151.68 × 92.32
  4. Step 4: Simplify right side
    101.40x = 14,003.10
  5. Step 5: Solve for x
    x = 14,003.10/101.40
  6. Step 6: Final answer
    x = 138.10

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.