Home / 190,635.76-285,861-57,491.20

Finding the Fourth Proportional to 190,635.76, 285,861 and 57,491.20

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Solution

The fourth proportional to 190,635.76, 285,861 and 57,491.20 is: 86,208.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,635.76 : 285,861 = 57,491.20 : x
  2. Step 2: Convert to fraction form
    190,635.76/285,861 = 57,491.20/x
  3. Step 3: Cross multiply
    190,635.76x = 285,861 × 57,491.20
  4. Step 4: Simplify right side
    190,635.76x = 16,434,491,923.20
  5. Step 5: Solve for x
    x = 16,434,491,923.20/190,635.76
  6. Step 6: Final answer
    x = 86,208.86

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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.