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Finding the Fourth Proportional to 88.48, 132.17 and 88.12

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Solution

The fourth proportional to 88.48, 132.17 and 88.12 is: 131.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    88.48 : 132.17 = 88.12 : x
  2. Step 2: Convert to fraction form
    88.48/132.17 = 88.12/x
  3. Step 3: Cross multiply
    88.48x = 132.17 × 88.12
  4. Step 4: Simplify right side
    88.48x = 11,646.82
  5. Step 5: Solve for x
    x = 11,646.82/88.48
  6. Step 6: Final answer
    x = 131.63

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.