Home / 91,175.07-125,760.15-79,217.85

Finding the Fourth Proportional to 91,175.07, 125,760.15 and 79,217.85

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Solution

The fourth proportional to 91,175.07, 125,760.15 and 79,217.85 is: 109,267.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,175.07 : 125,760.15 = 79,217.85 : x
  2. Step 2: Convert to fraction form
    91,175.07/125,760.15 = 79,217.85/x
  3. Step 3: Cross multiply
    91,175.07x = 125,760.15 × 79,217.85
  4. Step 4: Simplify right side
    91,175.07x = 9,962,448,698.68
  5. Step 5: Solve for x
    x = 9,962,448,698.68/91,175.07
  6. Step 6: Final answer
    x = 109,267.24

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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.