Home / 154,049.52-212,584.41-86,067

Finding the Fourth Proportional to 154,049.52, 212,584.41 and 86,067

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Solution

The fourth proportional to 154,049.52, 212,584.41 and 86,067 is: 118,770.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,049.52 : 212,584.41 = 86,067 : x
  2. Step 2: Convert to fraction form
    154,049.52/212,584.41 = 86,067/x
  3. Step 3: Cross multiply
    154,049.52x = 212,584.41 × 86,067
  4. Step 4: Simplify right side
    154,049.52x = 18,296,502,415.47
  5. Step 5: Solve for x
    x = 18,296,502,415.47/154,049.52
  6. Step 6: Final answer
    x = 118,770.27

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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.