Home / 211,382.08-317,069.46-71,140.71

Finding the Fourth Proportional to 211,382.08, 317,069.46 and 71,140.71

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Solution

The fourth proportional to 211,382.08, 317,069.46 and 71,140.71 is: 106,709.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,382.08 : 317,069.46 = 71,140.71 : x
  2. Step 2: Convert to fraction form
    211,382.08/317,069.46 = 71,140.71/x
  3. Step 3: Cross multiply
    211,382.08x = 317,069.46 × 71,140.71
  4. Step 4: Simplify right side
    211,382.08x = 22,556,545,217.54
  5. Step 5: Solve for x
    x = 22,556,545,217.54/211,382.08
  6. Step 6: Final answer
    x = 106,709.83

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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.