Home / 236,821.35-326,818.17-129,398.06

Finding the Fourth Proportional to 236,821.35, 326,818.17 and 129,398.06

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Solution

The fourth proportional to 236,821.35, 326,818.17 and 129,398.06 is: 178,571.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,821.35 : 326,818.17 = 129,398.06 : x
  2. Step 2: Convert to fraction form
    236,821.35/326,818.17 = 129,398.06/x
  3. Step 3: Cross multiply
    236,821.35x = 326,818.17 × 129,398.06
  4. Step 4: Simplify right side
    236,821.35x = 42,289,635,536.66
  5. Step 5: Solve for x
    x = 42,289,635,536.66/236,821.35
  6. Step 6: Final answer
    x = 178,571.89

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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.