Home / 199,942.20-299,928.96-66,822.75

Finding the Fourth Proportional to 199,942.20, 299,928.96 and 66,822.75

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Solution

The fourth proportional to 199,942.20, 299,928.96 and 66,822.75 is: 100,239.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,942.20 : 299,928.96 = 66,822.75 : x
  2. Step 2: Convert to fraction form
    199,942.20/299,928.96 = 66,822.75/x
  3. Step 3: Cross multiply
    199,942.20x = 299,928.96 × 66,822.75
  4. Step 4: Simplify right side
    199,942.20x = 20,042,077,911.84
  5. Step 5: Solve for x
    x = 20,042,077,911.84/199,942.20
  6. Step 6: Final answer
    x = 100,239.36

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1.5x scale

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.