Home / 118,485.97-177,571.77-51,853.55

Finding the Fourth Proportional to 118,485.97, 177,571.77 and 51,853.55

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Solution

The fourth proportional to 118,485.97, 177,571.77 and 51,853.55 is: 77,711.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,485.97 : 177,571.77 = 51,853.55 : x
  2. Step 2: Convert to fraction form
    118,485.97/177,571.77 = 51,853.55/x
  3. Step 3: Cross multiply
    118,485.97x = 177,571.77 × 51,853.55
  4. Step 4: Simplify right side
    118,485.97x = 9,207,726,716.65
  5. Step 5: Solve for x
    x = 9,207,726,716.65/118,485.97
  6. Step 6: Final answer
    x = 77,711.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.