Home / 203,172.36-280,379.91-122,584.29

Finding the Fourth Proportional to 203,172.36, 280,379.91 and 122,584.29

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Solution

The fourth proportional to 203,172.36, 280,379.91 and 122,584.29 is: 169,167.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,172.36 : 280,379.91 = 122,584.29 : x
  2. Step 2: Convert to fraction form
    203,172.36/280,379.91 = 122,584.29/x
  3. Step 3: Cross multiply
    203,172.36x = 280,379.91 × 122,584.29
  4. Step 4: Simplify right side
    203,172.36x = 34,370,172,197.61
  5. Step 5: Solve for x
    x = 34,370,172,197.61/203,172.36
  6. Step 6: Final answer
    x = 169,167.56

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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.