Home / 122,743.12-169,383.90-69,028.12

Finding the Fourth Proportional to 122,743.12, 169,383.90 and 69,028.12

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Solution

The fourth proportional to 122,743.12, 169,383.90 and 69,028.12 is: 95,257.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,743.12 : 169,383.90 = 69,028.12 : x
  2. Step 2: Convert to fraction form
    122,743.12/169,383.90 = 69,028.12/x
  3. Step 3: Cross multiply
    122,743.12x = 169,383.90 × 69,028.12
  4. Step 4: Simplify right side
    122,743.12x = 11,692,252,175.27
  5. Step 5: Solve for x
    x = 11,692,252,175.27/122,743.12
  6. Step 6: Final answer
    x = 95,257.90

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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.