Home / 120,890.39-166,825.44-67,174.02

Finding the Fourth Proportional to 120,890.39, 166,825.44 and 67,174.02

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Solution

The fourth proportional to 120,890.39, 166,825.44 and 67,174.02 is: 92,698.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,890.39 : 166,825.44 = 67,174.02 : x
  2. Step 2: Convert to fraction form
    120,890.39/166,825.44 = 67,174.02/x
  3. Step 3: Cross multiply
    120,890.39x = 166,825.44 × 67,174.02
  4. Step 4: Simplify right side
    120,890.39x = 11,206,335,443.07
  5. Step 5: Solve for x
    x = 11,206,335,443.07/120,890.39
  6. Step 6: Final answer
    x = 92,698.32

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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.