Home / 231,341.67-319,249.62-129,367.33

Finding the Fourth Proportional to 231,341.67, 319,249.62 and 129,367.33

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Solution

The fourth proportional to 231,341.67, 319,249.62 and 129,367.33 is: 178,525.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,341.67 : 319,249.62 = 129,367.33 : x
  2. Step 2: Convert to fraction form
    231,341.67/319,249.62 = 129,367.33/x
  3. Step 3: Cross multiply
    231,341.67x = 319,249.62 × 129,367.33
  4. Step 4: Simplify right side
    231,341.67x = 41,300,470,144.79
  5. Step 5: Solve for x
    x = 41,300,470,144.79/231,341.67
  6. Step 6: Final answer
    x = 178,525.86

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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.