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Finding the Fourth Proportional to 100.44, 151.47 and 92.95

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Solution

The fourth proportional to 100.44, 151.47 and 92.95 is: 140.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    100.44 : 151.47 = 92.95 : x
  2. Step 2: Convert to fraction form
    100.44/151.47 = 92.95/x
  3. Step 3: Cross multiply
    100.44x = 151.47 × 92.95
  4. Step 4: Simplify right side
    100.44x = 14,078.76
  5. Step 5: Solve for x
    x = 14,078.76/100.44
  6. Step 6: Final answer
    x = 140.17

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.