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Finding the Fourth Proportional to 100.37, 151.18 and 94.29

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Solution

The fourth proportional to 100.37, 151.18 and 94.29 is: 142.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    100.37 : 151.18 = 94.29 : x
  2. Step 2: Convert to fraction form
    100.37/151.18 = 94.29/x
  3. Step 3: Cross multiply
    100.37x = 151.18 × 94.29
  4. Step 4: Simplify right side
    100.37x = 14,254.76
  5. Step 5: Solve for x
    x = 14,254.76/100.37
  6. Step 6: Final answer
    x = 142.02

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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.