Home / 190,760.05-285,583.41-142,940.61

Finding the Fourth Proportional to 190,760.05, 285,583.41 and 142,940.61

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Solution

The fourth proportional to 190,760.05, 285,583.41 and 142,940.61 is: 213,993.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,760.05 : 285,583.41 = 142,940.61 : x
  2. Step 2: Convert to fraction form
    190,760.05/285,583.41 = 142,940.61/x
  3. Step 3: Cross multiply
    190,760.05x = 285,583.41 × 142,940.61
  4. Step 4: Simplify right side
    190,760.05x = 40,821,467,936.42
  5. Step 5: Solve for x
    x = 40,821,467,936.42/190,760.05
  6. Step 6: Final answer
    x = 213,993.80

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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.