Home / 203,186.43-280,413.07-112,550.83

Finding the Fourth Proportional to 203,186.43, 280,413.07 and 112,550.83

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Solution

The fourth proportional to 203,186.43, 280,413.07 and 112,550.83 is: 155,328.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,186.43 : 280,413.07 = 112,550.83 : x
  2. Step 2: Convert to fraction form
    203,186.43/280,413.07 = 112,550.83/x
  3. Step 3: Cross multiply
    203,186.43x = 280,413.07 × 112,550.83
  4. Step 4: Simplify right side
    203,186.43x = 31,560,722,788.94
  5. Step 5: Solve for x
    x = 31,560,722,788.94/203,186.43
  6. Step 6: Final answer
    x = 155,328.89

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1.5x scale

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.