Home / 236,249.73-326,031.48-128,821.86

Finding the Fourth Proportional to 236,249.73, 326,031.48 and 128,821.86

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Solution

The fourth proportional to 236,249.73, 326,031.48 and 128,821.86 is: 177,777.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,249.73 : 326,031.48 = 128,821.86 : x
  2. Step 2: Convert to fraction form
    236,249.73/326,031.48 = 128,821.86/x
  3. Step 3: Cross multiply
    236,249.73x = 326,031.48 × 128,821.86
  4. Step 4: Simplify right side
    236,249.73x = 41,999,981,672.15
  5. Step 5: Solve for x
    x = 41,999,981,672.15/236,249.73
  6. Step 6: Final answer
    x = 177,777.90

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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.