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Finding the Fourth Proportional to 112.60, 168.88 and 44.08

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Solution

The fourth proportional to 112.60, 168.88 and 44.08 is: 66.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    112.60 : 168.88 = 44.08 : x
  2. Step 2: Convert to fraction form
    112.60/168.88 = 44.08/x
  3. Step 3: Cross multiply
    112.60x = 168.88 × 44.08
  4. Step 4: Simplify right side
    112.60x = 7,444.23
  5. Step 5: Solve for x
    x = 7,444.23/112.60
  6. Step 6: Final answer
    x = 66.11

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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.