Home / 211,765.91-317,581.49-69,578.41

Finding the Fourth Proportional to 211,765.91, 317,581.49 and 69,578.41

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Solution

The fourth proportional to 211,765.91, 317,581.49 and 69,578.41 is: 104,345.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,765.91 : 317,581.49 = 69,578.41 : x
  2. Step 2: Convert to fraction form
    211,765.91/317,581.49 = 69,578.41/x
  3. Step 3: Cross multiply
    211,765.91x = 317,581.49 × 69,578.41
  4. Step 4: Simplify right side
    211,765.91x = 22,096,815,119.63
  5. Step 5: Solve for x
    x = 22,096,815,119.63/211,765.91
  6. Step 6: Final answer
    x = 104,345.48

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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.