Home / 190,223.82-285,338.16-90,393.75

Finding the Fourth Proportional to 190,223.82, 285,338.16 and 90,393.75

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Solution

The fourth proportional to 190,223.82, 285,338.16 and 90,393.75 is: 135,591.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,223.82 : 285,338.16 = 90,393.75 : x
  2. Step 2: Convert to fraction form
    190,223.82/285,338.16 = 90,393.75/x
  3. Step 3: Cross multiply
    190,223.82x = 285,338.16 × 90,393.75
  4. Step 4: Simplify right side
    190,223.82x = 25,792,786,300.50
  5. Step 5: Solve for x
    x = 25,792,786,300.50/190,223.82
  6. Step 6: Final answer
    x = 135,591.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.