Home / 154,634.27-213,408.37-86,650.46

Finding the Fourth Proportional to 154,634.27, 213,408.37 and 86,650.46

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Solution

The fourth proportional to 154,634.27, 213,408.37 and 86,650.46 is: 119,584.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,634.27 : 213,408.37 = 86,650.46 : x
  2. Step 2: Convert to fraction form
    154,634.27/213,408.37 = 86,650.46/x
  3. Step 3: Cross multiply
    154,634.27x = 213,408.37 × 86,650.46
  4. Step 4: Simplify right side
    154,634.27x = 18,491,933,269.90
  5. Step 5: Solve for x
    x = 18,491,933,269.90/154,634.27
  6. Step 6: Final answer
    x = 119,584.97

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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.