Home / 154,884.06-213,727.41-86,891.85

Finding the Fourth Proportional to 154,884.06, 213,727.41 and 86,891.85

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Solution

The fourth proportional to 154,884.06, 213,727.41 and 86,891.85 is: 119,903.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,884.06 : 213,727.41 = 86,891.85 : x
  2. Step 2: Convert to fraction form
    154,884.06/213,727.41 = 86,891.85/x
  3. Step 3: Cross multiply
    154,884.06x = 213,727.41 × 86,891.85
  4. Step 4: Simplify right side
    154,884.06x = 18,571,170,050.61
  5. Step 5: Solve for x
    x = 18,571,170,050.61/154,884.06
  6. Step 6: Final answer
    x = 119,903.69

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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.