Home / 190,891.20-285,753.60-148,900.80

Finding the Fourth Proportional to 190,891.20, 285,753.60 and 148,900.80

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Solution

The fourth proportional to 190,891.20, 285,753.60 and 148,900.80 is: 222,896.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,891.20 : 285,753.60 = 148,900.80 : x
  2. Step 2: Convert to fraction form
    190,891.20/285,753.60 = 148,900.80/x
  3. Step 3: Cross multiply
    190,891.20x = 285,753.60 × 148,900.80
  4. Step 4: Simplify right side
    190,891.20x = 42,548,939,642.88
  5. Step 5: Solve for x
    x = 42,548,939,642.88/190,891.20
  6. Step 6: Final answer
    x = 222,896.29

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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.