Home / 216,979.26-325,520.84-90,549.17

Finding the Fourth Proportional to 216,979.26, 325,520.84 and 90,549.17

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Solution

The fourth proportional to 216,979.26, 325,520.84 and 90,549.17 is: 135,845.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,979.26 : 325,520.84 = 90,549.17 : x
  2. Step 2: Convert to fraction form
    216,979.26/325,520.84 = 90,549.17/x
  3. Step 3: Cross multiply
    216,979.26x = 325,520.84 × 90,549.17
  4. Step 4: Simplify right side
    216,979.26x = 29,475,642,919.88
  5. Step 5: Solve for x
    x = 29,475,642,919.88/216,979.26
  6. Step 6: Final answer
    x = 135,845.44

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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.