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Finding the Fourth Proportional to 88.34, 120.96 and 88.04

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Solution

The fourth proportional to 88.34, 120.96 and 88.04 is: 120.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    88.34 : 120.96 = 88.04 : x
  2. Step 2: Convert to fraction form
    88.34/120.96 = 88.04/x
  3. Step 3: Cross multiply
    88.34x = 120.96 × 88.04
  4. Step 4: Simplify right side
    88.34x = 10,649.32
  5. Step 5: Solve for x
    x = 10,649.32/88.34
  6. Step 6: Final answer
    x = 120.55

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.