Home / 205,083.82-282,981.76-136,991.58

Finding the Fourth Proportional to 205,083.82, 282,981.76 and 136,991.58

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Solution

The fourth proportional to 205,083.82, 282,981.76 and 136,991.58 is: 189,025.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,083.82 : 282,981.76 = 136,991.58 : x
  2. Step 2: Convert to fraction form
    205,083.82/282,981.76 = 136,991.58/x
  3. Step 3: Cross multiply
    205,083.82x = 282,981.76 × 136,991.58
  4. Step 4: Simplify right side
    205,083.82x = 38,766,118,413.58
  5. Step 5: Solve for x
    x = 38,766,118,413.58/205,083.82
  6. Step 6: Final answer
    x = 189,025.73

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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.