Home / 147,668.24-221,453.76-81,183.44

Finding the Fourth Proportional to 147,668.24, 221,453.76 and 81,183.44

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Solution

The fourth proportional to 147,668.24, 221,453.76 and 81,183.44 is: 121,748.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,668.24 : 221,453.76 = 81,183.44 : x
  2. Step 2: Convert to fraction form
    147,668.24/221,453.76 = 81,183.44/x
  3. Step 3: Cross multiply
    147,668.24x = 221,453.76 × 81,183.44
  4. Step 4: Simplify right side
    147,668.24x = 17,978,378,037.73
  5. Step 5: Solve for x
    x = 17,978,378,037.73/147,668.24
  6. Step 6: Final answer
    x = 121,748.44

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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.