Home / 211,822.11-317,723.45-71,581.95

Finding the Fourth Proportional to 211,822.11, 317,723.45 and 71,581.95

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Solution

The fourth proportional to 211,822.11, 317,723.45 and 71,581.95 is: 107,369.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,822.11 : 317,723.45 = 71,581.95 : x
  2. Step 2: Convert to fraction form
    211,822.11/317,723.45 = 71,581.95/x
  3. Step 3: Cross multiply
    211,822.11x = 317,723.45 × 71,581.95
  4. Step 4: Simplify right side
    211,822.11x = 22,743,263,753.82
  5. Step 5: Solve for x
    x = 22,743,263,753.82/211,822.11
  6. Step 6: Final answer
    x = 107,369.64

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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.