Home / 221,698.14-305,965.92-131,083.44

Finding the Fourth Proportional to 221,698.14, 305,965.92 and 131,083.44

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Solution

The fourth proportional to 221,698.14, 305,965.92 and 131,083.44 is: 180,908.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,698.14 : 305,965.92 = 131,083.44 : x
  2. Step 2: Convert to fraction form
    221,698.14/305,965.92 = 131,083.44/x
  3. Step 3: Cross multiply
    221,698.14x = 305,965.92 × 131,083.44
  4. Step 4: Simplify right side
    221,698.14x = 40,107,065,316.36
  5. Step 5: Solve for x
    x = 40,107,065,316.36/221,698.14
  6. Step 6: Final answer
    x = 180,908.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.