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Finding the Fourth Proportional to 107.52, 160.45 and 88.08

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Solution

The fourth proportional to 107.52, 160.45 and 88.08 is: 131.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    107.52 : 160.45 = 88.08 : x
  2. Step 2: Convert to fraction form
    107.52/160.45 = 88.08/x
  3. Step 3: Cross multiply
    107.52x = 160.45 × 88.08
  4. Step 4: Simplify right side
    107.52x = 14,132.44
  5. Step 5: Solve for x
    x = 14,132.44/107.52
  6. Step 6: Final answer
    x = 131.44

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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.