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Finding the Fourth Proportional to 101.04, 151.20 and 92.64

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Solution

The fourth proportional to 101.04, 151.20 and 92.64 is: 138.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    101.04 : 151.20 = 92.64 : x
  2. Step 2: Convert to fraction form
    101.04/151.20 = 92.64/x
  3. Step 3: Cross multiply
    101.04x = 151.20 × 92.64
  4. Step 4: Simplify right side
    101.04x = 14,007.17
  5. Step 5: Solve for x
    x = 14,007.17/101.04
  6. Step 6: Final answer
    x = 138.63

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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.