Home / 266,760.61-399,993.26-109,099.78

Finding the Fourth Proportional to 266,760.61, 399,993.26 and 109,099.78

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Solution

The fourth proportional to 266,760.61, 399,993.26 and 109,099.78 is: 163,589.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,760.61 : 399,993.26 = 109,099.78 : x
  2. Step 2: Convert to fraction form
    266,760.61/399,993.26 = 109,099.78/x
  3. Step 3: Cross multiply
    266,760.61x = 399,993.26 × 109,099.78
  4. Step 4: Simplify right side
    266,760.61x = 43,639,175,122.00
  5. Step 5: Solve for x
    x = 43,639,175,122.00/266,760.61
  6. Step 6: Final answer
    x = 163,589.28

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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.