Home / 112,396.82-155,067.21-72,132.73

Finding the Fourth Proportional to 112,396.82, 155,067.21 and 72,132.73

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Solution

The fourth proportional to 112,396.82, 155,067.21 and 72,132.73 is: 99,517.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,396.82 : 155,067.21 = 72,132.73 : x
  2. Step 2: Convert to fraction form
    112,396.82/155,067.21 = 72,132.73/x
  3. Step 3: Cross multiply
    112,396.82x = 155,067.21 × 72,132.73
  4. Step 4: Simplify right side
    112,396.82x = 11,185,420,803.12
  5. Step 5: Solve for x
    x = 11,185,420,803.12/112,396.82
  6. Step 6: Final answer
    x = 99,517.24

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1.5x scale

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.