Home / 190,231.20-285,463.44-85,139.04

Finding the Fourth Proportional to 190,231.20, 285,463.44 and 85,139.04

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Solution

The fourth proportional to 190,231.20, 285,463.44 and 85,139.04 is: 127,760.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,231.20 : 285,463.44 = 85,139.04 : x
  2. Step 2: Convert to fraction form
    190,231.20/285,463.44 = 85,139.04/x
  3. Step 3: Cross multiply
    190,231.20x = 285,463.44 × 85,139.04
  4. Step 4: Simplify right side
    190,231.20x = 24,304,083,236.70
  5. Step 5: Solve for x
    x = 24,304,083,236.70/190,231.20
  6. Step 6: Final answer
    x = 127,760.76

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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.