Home / 190,521.43-285,723.78-131,734.87

Finding the Fourth Proportional to 190,521.43, 285,723.78 and 131,734.87

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Solution

The fourth proportional to 190,521.43, 285,723.78 and 131,734.87 is: 197,561.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,521.43 : 285,723.78 = 131,734.87 : x
  2. Step 2: Convert to fraction form
    190,521.43/285,723.78 = 131,734.87/x
  3. Step 3: Cross multiply
    190,521.43x = 285,723.78 × 131,734.87
  4. Step 4: Simplify right side
    190,521.43x = 37,639,785,014.21
  5. Step 5: Solve for x
    x = 37,639,785,014.21/190,521.43
  6. Step 6: Final answer
    x = 197,561.95

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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.