Home / 141,729.83-195,587.69-78,067.47

Finding the Fourth Proportional to 141,729.83, 195,587.69 and 78,067.47

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Solution

The fourth proportional to 141,729.83, 195,587.69 and 78,067.47 is: 107,733.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,729.83 : 195,587.69 = 78,067.47 : x
  2. Step 2: Convert to fraction form
    141,729.83/195,587.69 = 78,067.47/x
  3. Step 3: Cross multiply
    141,729.83x = 195,587.69 × 78,067.47
  4. Step 4: Simplify right side
    141,729.83x = 15,269,036,121.44
  5. Step 5: Solve for x
    x = 15,269,036,121.44/141,729.83
  6. Step 6: Final answer
    x = 107,733.40

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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.