Home / 236,761.10-355,125.45-76,834.70

Finding the Fourth Proportional to 236,761.10, 355,125.45 and 76,834.70

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Solution

The fourth proportional to 236,761.10, 355,125.45 and 76,834.70 is: 115,246.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,761.10 : 355,125.45 = 76,834.70 : x
  2. Step 2: Convert to fraction form
    236,761.10/355,125.45 = 76,834.70/x
  3. Step 3: Cross multiply
    236,761.10x = 355,125.45 × 76,834.70
  4. Step 4: Simplify right side
    236,761.10x = 27,285,957,413.12
  5. Step 5: Solve for x
    x = 27,285,957,413.12/236,761.10
  6. Step 6: Final answer
    x = 115,246.79

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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.