Home / 236,709.11-326,653.36-129,279.58

Finding the Fourth Proportional to 236,709.11, 326,653.36 and 129,279.58

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Solution

The fourth proportional to 236,709.11, 326,653.36 and 129,279.58 is: 178,402.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,709.11 : 326,653.36 = 129,279.58 : x
  2. Step 2: Convert to fraction form
    236,709.11/326,653.36 = 129,279.58/x
  3. Step 3: Cross multiply
    236,709.11x = 326,653.36 × 129,279.58
  4. Step 4: Simplify right side
    236,709.11x = 42,229,608,046.56
  5. Step 5: Solve for x
    x = 42,229,608,046.56/236,709.11
  6. Step 6: Final answer
    x = 178,402.97

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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.