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Finding the Fourth Proportional to 108.49, 149.71 and 59.37

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Solution

The fourth proportional to 108.49, 149.71 and 59.37 is: 81.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    108.49 : 149.71 = 59.37 : x
  2. Step 2: Convert to fraction form
    108.49/149.71 = 59.37/x
  3. Step 3: Cross multiply
    108.49x = 149.71 × 59.37
  4. Step 4: Simplify right side
    108.49x = 8,887.83
  5. Step 5: Solve for x
    x = 8,887.83/108.49
  6. Step 6: Final answer
    x = 81.92

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