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Finding the Fourth Proportional to 118,229.16, 177,243.86 and 55,016.66

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Solution

The fourth proportional to 118,229.16, 177,243.86 and 55,016.66 is: 82,478.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,229.16 : 177,243.86 = 55,016.66 : x
  2. Step 2: Convert to fraction form
    118,229.16/177,243.86 = 55,016.66/x
  3. Step 3: Cross multiply
    118,229.16x = 177,243.86 × 55,016.66
  4. Step 4: Simplify right side
    118,229.16x = 9,751,365,182.71
  5. Step 5: Solve for x
    x = 9,751,365,182.71/118,229.16
  6. Step 6: Final answer
    x = 82,478.51

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.