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Finding the Fourth Proportional to 101.29, 151.81 and 43.45

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Solution

The fourth proportional to 101.29, 151.81 and 43.45 is: 65.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    101.29 : 151.81 = 43.45 : x
  2. Step 2: Convert to fraction form
    101.29/151.81 = 43.45/x
  3. Step 3: Cross multiply
    101.29x = 151.81 × 43.45
  4. Step 4: Simplify right side
    101.29x = 6,595.28
  5. Step 5: Solve for x
    x = 6,595.28/101.29
  6. Step 6: Final answer
    x = 65.11

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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.