Home / 112,121.64-167,992.13-67,654.95

Finding the Fourth Proportional to 112,121.64, 167,992.13 and 67,654.95

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Solution

The fourth proportional to 112,121.64, 167,992.13 and 67,654.95 is: 101,367.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,121.64 : 167,992.13 = 67,654.95 : x
  2. Step 2: Convert to fraction form
    112,121.64/167,992.13 = 67,654.95/x
  3. Step 3: Cross multiply
    112,121.64x = 167,992.13 × 67,654.95
  4. Step 4: Simplify right side
    112,121.64x = 11,365,498,817.27
  5. Step 5: Solve for x
    x = 11,365,498,817.27/112,121.64
  6. Step 6: Final answer
    x = 101,367.58

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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.