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Finding the Fourth Proportional to 133.56, 184.37 and 100.82

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Solution

The fourth proportional to 133.56, 184.37 and 100.82 is: 139.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    133.56 : 184.37 = 100.82 : x
  2. Step 2: Convert to fraction form
    133.56/184.37 = 100.82/x
  3. Step 3: Cross multiply
    133.56x = 184.37 × 100.82
  4. Step 4: Simplify right side
    133.56x = 18,588.18
  5. Step 5: Solve for x
    x = 18,588.18/133.56
  6. Step 6: Final answer
    x = 139.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.