Home / 117,641.44-162,279.48-72,287.92

Finding the Fourth Proportional to 117,641.44, 162,279.48 and 72,287.92

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Solution

The fourth proportional to 117,641.44, 162,279.48 and 72,287.92 is: 99,716.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,641.44 : 162,279.48 = 72,287.92 : x
  2. Step 2: Convert to fraction form
    117,641.44/162,279.48 = 72,287.92/x
  3. Step 3: Cross multiply
    117,641.44x = 162,279.48 × 72,287.92
  4. Step 4: Simplify right side
    117,641.44x = 11,730,846,067.88
  5. Step 5: Solve for x
    x = 11,730,846,067.88/117,641.44
  6. Step 6: Final answer
    x = 99,716.95

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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.