Home / 144,778.32-199,891.40-90,413.15

Finding the Fourth Proportional to 144,778.32, 199,891.40 and 90,413.15

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Solution

The fourth proportional to 144,778.32, 199,891.40 and 90,413.15 is: 124,830.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,778.32 : 199,891.40 = 90,413.15 : x
  2. Step 2: Convert to fraction form
    144,778.32/199,891.40 = 90,413.15/x
  3. Step 3: Cross multiply
    144,778.32x = 199,891.40 × 90,413.15
  4. Step 4: Simplify right side
    144,778.32x = 18,072,809,680.39
  5. Step 5: Solve for x
    x = 18,072,809,680.39/144,778.32
  6. Step 6: Final answer
    x = 124,830.91

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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.