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Finding the Fourth Proportional to 112.22, 155.00 and 110.71

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Solution

The fourth proportional to 112.22, 155.00 and 110.71 is: 152.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    112.22 : 155.00 = 110.71 : x
  2. Step 2: Convert to fraction form
    112.22/155.00 = 110.71/x
  3. Step 3: Cross multiply
    112.22x = 155.00 × 110.71
  4. Step 4: Simplify right side
    112.22x = 17,159.11
  5. Step 5: Solve for x
    x = 17,159.11/112.22
  6. Step 6: Final answer
    x = 152.90

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.