Home / 236,805.42-326,791.74-129,377.26

Finding the Fourth Proportional to 236,805.42, 326,791.74 and 129,377.26

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Solution

The fourth proportional to 236,805.42, 326,791.74 and 129,377.26 is: 178,540.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,805.42 : 326,791.74 = 129,377.26 : x
  2. Step 2: Convert to fraction form
    236,805.42/326,791.74 = 129,377.26/x
  3. Step 3: Cross multiply
    236,805.42x = 326,791.74 × 129,377.26
  4. Step 4: Simplify right side
    236,805.42x = 42,279,419,911.83
  5. Step 5: Solve for x
    x = 42,279,419,911.83/236,805.42
  6. Step 6: Final answer
    x = 178,540.76

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1.5x scale

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.