Home / 189,238.59-261,137.33-108,609.36

Finding the Fourth Proportional to 189,238.59, 261,137.33 and 108,609.36

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Solution

The fourth proportional to 189,238.59, 261,137.33 and 108,609.36 is: 149,874.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,238.59 : 261,137.33 = 108,609.36 : x
  2. Step 2: Convert to fraction form
    189,238.59/261,137.33 = 108,609.36/x
  3. Step 3: Cross multiply
    189,238.59x = 261,137.33 × 108,609.36
  4. Step 4: Simplify right side
    189,238.59x = 28,361,957,740.36
  5. Step 5: Solve for x
    x = 28,361,957,740.36/189,238.59
  6. Step 6: Final answer
    x = 149,874.07

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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.