Home / 199,899.42-299,747.25-66,731.82

Finding the Fourth Proportional to 199,899.42, 299,747.25 and 66,731.82

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Solution

The fourth proportional to 199,899.42, 299,747.25 and 66,731.82 is: 100,063.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,899.42 : 299,747.25 = 66,731.82 : x
  2. Step 2: Convert to fraction form
    199,899.42/299,747.25 = 66,731.82/x
  3. Step 3: Cross multiply
    199,899.42x = 299,747.25 × 66,731.82
  4. Step 4: Simplify right side
    199,899.42x = 20,002,679,532.50
  5. Step 5: Solve for x
    x = 20,002,679,532.50/199,899.42
  6. Step 6: Final answer
    x = 100,063.72

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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.