Home / 129,786.25-179,105.03-70,170.25

Finding the Fourth Proportional to 129,786.25, 179,105.03 and 70,170.25

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Solution

The fourth proportional to 129,786.25, 179,105.03 and 70,170.25 is: 96,834.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,786.25 : 179,105.03 = 70,170.25 : x
  2. Step 2: Convert to fraction form
    129,786.25/179,105.03 = 70,170.25/x
  3. Step 3: Cross multiply
    129,786.25x = 179,105.03 × 70,170.25
  4. Step 4: Simplify right side
    129,786.25x = 12,567,844,731.36
  5. Step 5: Solve for x
    x = 12,567,844,731.36/129,786.25
  6. Step 6: Final answer
    x = 96,834.95

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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.