Home / 118,229.15-177,243.87-55,016.66

Finding the Fourth Proportional to 118,229.15, 177,243.87 and 55,016.66

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Solution

The fourth proportional to 118,229.15, 177,243.87 and 55,016.66 is: 82,478.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,229.15 : 177,243.87 = 55,016.66 : x
  2. Step 2: Convert to fraction form
    118,229.15/177,243.87 = 55,016.66/x
  3. Step 3: Cross multiply
    118,229.15x = 177,243.87 × 55,016.66
  4. Step 4: Simplify right side
    118,229.15x = 9,751,365,732.87
  5. Step 5: Solve for x
    x = 9,751,365,732.87/118,229.15
  6. Step 6: Final answer
    x = 82,478.52

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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.