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Finding the Fourth Proportional to 161.09, 222.71 and 124.37

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Solution

The fourth proportional to 161.09, 222.71 and 124.37 is: 171.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    161.09 : 222.71 = 124.37 : x
  2. Step 2: Convert to fraction form
    161.09/222.71 = 124.37/x
  3. Step 3: Cross multiply
    161.09x = 222.71 × 124.37
  4. Step 4: Simplify right side
    161.09x = 27,696.71
  5. Step 5: Solve for x
    x = 27,696.71/161.09
  6. Step 6: Final answer
    x = 171.94

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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.