Home / 203,916.69-281,397.06-113,278.41

Finding the Fourth Proportional to 203,916.69, 281,397.06 and 113,278.41

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Solution

The fourth proportional to 203,916.69, 281,397.06 and 113,278.41 is: 156,319.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,916.69 : 281,397.06 = 113,278.41 : x
  2. Step 2: Convert to fraction form
    203,916.69/281,397.06 = 113,278.41/x
  3. Step 3: Cross multiply
    203,916.69x = 281,397.06 × 113,278.41
  4. Step 4: Simplify right side
    203,916.69x = 31,876,211,535.47
  5. Step 5: Solve for x
    x = 31,876,211,535.47/203,916.69
  6. Step 6: Final answer
    x = 156,319.78

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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.