Home / 136,413.53-188,220.97-82,711.74

Finding the Fourth Proportional to 136,413.53, 188,220.97 and 82,711.74

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Solution

The fourth proportional to 136,413.53, 188,220.97 and 82,711.74 is: 114,124.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,413.53 : 188,220.97 = 82,711.74 : x
  2. Step 2: Convert to fraction form
    136,413.53/188,220.97 = 82,711.74/x
  3. Step 3: Cross multiply
    136,413.53x = 188,220.97 × 82,711.74
  4. Step 4: Simplify right side
    136,413.53x = 15,568,083,933.19
  5. Step 5: Solve for x
    x = 15,568,083,933.19/136,413.53
  6. Step 6: Final answer
    x = 114,124.19

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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.