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Finding the Fourth Proportional to 88.08, 131.93 and 76.07

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Solution

The fourth proportional to 88.08, 131.93 and 76.07 is: 113.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    88.08 : 131.93 = 76.07 : x
  2. Step 2: Convert to fraction form
    88.08/131.93 = 76.07/x
  3. Step 3: Cross multiply
    88.08x = 131.93 × 76.07
  4. Step 4: Simplify right side
    88.08x = 10,036.44
  5. Step 5: Solve for x
    x = 10,036.44/88.08
  6. Step 6: Final answer
    x = 113.94

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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.