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Finding the Fourth Proportional to 107.36, 160.85 and 88.16

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Solution

The fourth proportional to 107.36, 160.85 and 88.16 is: 132.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    107.36 : 160.85 = 88.16 : x
  2. Step 2: Convert to fraction form
    107.36/160.85 = 88.16/x
  3. Step 3: Cross multiply
    107.36x = 160.85 × 88.16
  4. Step 4: Simplify right side
    107.36x = 14,179.95
  5. Step 5: Solve for x
    x = 14,179.95/107.36
  6. Step 6: Final answer
    x = 132.08

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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.