Home / 154,865.72-213,716.17-86,884.14

Finding the Fourth Proportional to 154,865.72, 213,716.17 and 86,884.14

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Solution

The fourth proportional to 154,865.72, 213,716.17 and 86,884.14 is: 119,900.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,865.72 : 213,716.17 = 86,884.14 : x
  2. Step 2: Convert to fraction form
    154,865.72/213,716.17 = 86,884.14/x
  3. Step 3: Cross multiply
    154,865.72x = 213,716.17 × 86,884.14
  4. Step 4: Simplify right side
    154,865.72x = 18,568,546,544.58
  5. Step 5: Solve for x
    x = 18,568,546,544.58/154,865.72
  6. Step 6: Final answer
    x = 119,900.95

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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.