Home / 199,819.64-299,721.21-111,016.50

Finding the Fourth Proportional to 199,819.64, 299,721.21 and 111,016.50

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Solution

The fourth proportional to 199,819.64, 299,721.21 and 111,016.50 is: 166,520.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,819.64 : 299,721.21 = 111,016.50 : x
  2. Step 2: Convert to fraction form
    199,819.64/299,721.21 = 111,016.50/x
  3. Step 3: Cross multiply
    199,819.64x = 299,721.21 × 111,016.50
  4. Step 4: Simplify right side
    199,819.64x = 33,273,999,709.97
  5. Step 5: Solve for x
    x = 33,273,999,709.97/199,819.64
  6. Step 6: Final answer
    x = 166,520.17

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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.