Home / 129,944.40-179,238.72-91,759.44

Finding the Fourth Proportional to 129,944.40, 179,238.72 and 91,759.44

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Solution

The fourth proportional to 129,944.40, 179,238.72 and 91,759.44 is: 126,568.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,944.40 : 179,238.72 = 91,759.44 : x
  2. Step 2: Convert to fraction form
    129,944.40/179,238.72 = 91,759.44/x
  3. Step 3: Cross multiply
    129,944.40x = 179,238.72 × 91,759.44
  4. Step 4: Simplify right side
    129,944.40x = 16,446,844,573.52
  5. Step 5: Solve for x
    x = 16,446,844,573.52/129,944.40
  6. Step 6: Final answer
    x = 126,568.32

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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.