Home / 115,976.58-173,669.49-76,413.78

Finding the Fourth Proportional to 115,976.58, 173,669.49 and 76,413.78

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Solution

The fourth proportional to 115,976.58, 173,669.49 and 76,413.78 is: 114,426.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,976.58 : 173,669.49 = 76,413.78 : x
  2. Step 2: Convert to fraction form
    115,976.58/173,669.49 = 76,413.78/x
  3. Step 3: Cross multiply
    115,976.58x = 173,669.49 × 76,413.78
  4. Step 4: Simplify right side
    115,976.58x = 13,270,742,201.57
  5. Step 5: Solve for x
    x = 13,270,742,201.57/115,976.58
  6. Step 6: Final answer
    x = 114,426.05

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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.