Home / 118,456.41-163,375.79-89,481.46

Finding the Fourth Proportional to 118,456.41, 163,375.79 and 89,481.46

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Solution

The fourth proportional to 118,456.41, 163,375.79 and 89,481.46 is: 123,413.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,456.41 : 163,375.79 = 89,481.46 : x
  2. Step 2: Convert to fraction form
    118,456.41/163,375.79 = 89,481.46/x
  3. Step 3: Cross multiply
    118,456.41x = 163,375.79 × 89,481.46
  4. Step 4: Simplify right side
    118,456.41x = 14,619,104,033.12
  5. Step 5: Solve for x
    x = 14,619,104,033.12/118,456.41
  6. Step 6: Final answer
    x = 123,413.36

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Why These Related Problems?

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