Home / 204,591.21-307,048.82-86,344.17

Finding the Fourth Proportional to 204,591.21, 307,048.82 and 86,344.17

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Solution

The fourth proportional to 204,591.21, 307,048.82 and 86,344.17 is: 129,584.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,591.21 : 307,048.82 = 86,344.17 : x
  2. Step 2: Convert to fraction form
    204,591.21/307,048.82 = 86,344.17/x
  3. Step 3: Cross multiply
    204,591.21x = 307,048.82 × 86,344.17
  4. Step 4: Simplify right side
    204,591.21x = 26,511,875,080.66
  5. Step 5: Solve for x
    x = 26,511,875,080.66/204,591.21
  6. Step 6: Final answer
    x = 129,584.62

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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.