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Finding the Fourth Proportional to 108.41, 162.64 and 59.65

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Solution

The fourth proportional to 108.41, 162.64 and 59.65 is: 89.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    108.41 : 162.64 = 59.65 : x
  2. Step 2: Convert to fraction form
    108.41/162.64 = 59.65/x
  3. Step 3: Cross multiply
    108.41x = 162.64 × 59.65
  4. Step 4: Simplify right side
    108.41x = 9,701.48
  5. Step 5: Solve for x
    x = 9,701.48/108.41
  6. Step 6: Final answer
    x = 89.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.