Home / 199,413.62-275,292.38-153,989.63

Finding the Fourth Proportional to 199,413.62, 275,292.38 and 153,989.63

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Solution

The fourth proportional to 199,413.62, 275,292.38 and 153,989.63 is: 212,584.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,413.62 : 275,292.38 = 153,989.63 : x
  2. Step 2: Convert to fraction form
    199,413.62/275,292.38 = 153,989.63/x
  3. Step 3: Cross multiply
    199,413.62x = 275,292.38 × 153,989.63
  4. Step 4: Simplify right side
    199,413.62x = 42,392,172,769.69
  5. Step 5: Solve for x
    x = 42,392,172,769.69/199,413.62
  6. Step 6: Final answer
    x = 212,584.14

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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.