Home / 211,453.92-291,819.72-139,708.14

Finding the Fourth Proportional to 211,453.92, 291,819.72 and 139,708.14

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Solution

The fourth proportional to 211,453.92, 291,819.72 and 139,708.14 is: 192,806.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,453.92 : 291,819.72 = 139,708.14 : x
  2. Step 2: Convert to fraction form
    211,453.92/291,819.72 = 139,708.14/x
  3. Step 3: Cross multiply
    211,453.92x = 291,819.72 × 139,708.14
  4. Step 4: Simplify right side
    211,453.92x = 40,769,590,296.52
  5. Step 5: Solve for x
    x = 40,769,590,296.52/211,453.92
  6. Step 6: Final answer
    x = 192,806.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.