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Finding the Fourth Proportional to 88.07, 132.17 and 61.07

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Solution

The fourth proportional to 88.07, 132.17 and 61.07 is: 91.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    88.07 : 132.17 = 61.07 : x
  2. Step 2: Convert to fraction form
    88.07/132.17 = 61.07/x
  3. Step 3: Cross multiply
    88.07x = 132.17 × 61.07
  4. Step 4: Simplify right side
    88.07x = 8,070.66
  5. Step 5: Solve for x
    x = 8,070.66/88.07
  6. Step 6: Final answer
    x = 91.64

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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.