Home / 217,813.68-326,513.16-69,966

Finding the Fourth Proportional to 217,813.68, 326,513.16 and 69,966

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Solution

The fourth proportional to 217,813.68, 326,513.16 and 69,966 is: 104,882.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,813.68 : 326,513.16 = 69,966 : x
  2. Step 2: Convert to fraction form
    217,813.68/326,513.16 = 69,966/x
  3. Step 3: Cross multiply
    217,813.68x = 326,513.16 × 69,966
  4. Step 4: Simplify right side
    217,813.68x = 22,844,819,752.56
  5. Step 5: Solve for x
    x = 22,844,819,752.56/217,813.68
  6. Step 6: Final answer
    x = 104,882.39

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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.