Home / 105,067.40-144,813.30-82,257.80

Finding the Fourth Proportional to 105,067.40, 144,813.30 and 82,257.80

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Solution

The fourth proportional to 105,067.40, 144,813.30 and 82,257.80 is: 113,375.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,067.40 : 144,813.30 = 82,257.80 : x
  2. Step 2: Convert to fraction form
    105,067.40/144,813.30 = 82,257.80/x
  3. Step 3: Cross multiply
    105,067.40x = 144,813.30 × 82,257.80
  4. Step 4: Simplify right side
    105,067.40x = 11,912,023,468.74
  5. Step 5: Solve for x
    x = 11,912,023,468.74/105,067.40
  6. Step 6: Final answer
    x = 113,375.07

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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.