Home / 154,616.68-213,413.06-90,975

Finding the Fourth Proportional to 154,616.68, 213,413.06 and 90,975

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Solution

The fourth proportional to 154,616.68, 213,413.06 and 90,975 is: 125,570.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,616.68 : 213,413.06 = 90,975 : x
  2. Step 2: Convert to fraction form
    154,616.68/213,413.06 = 90,975/x
  3. Step 3: Cross multiply
    154,616.68x = 213,413.06 × 90,975
  4. Step 4: Simplify right side
    154,616.68x = 19,415,253,133.50
  5. Step 5: Solve for x
    x = 19,415,253,133.50/154,616.68
  6. Step 6: Final answer
    x = 125,570.24

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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.