Home / 203,916.87-281,396.16-113,279.13

Finding the Fourth Proportional to 203,916.87, 281,396.16 and 113,279.13

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Solution

The fourth proportional to 203,916.87, 281,396.16 and 113,279.13 is: 156,320.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,916.87 : 281,396.16 = 113,279.13 : x
  2. Step 2: Convert to fraction form
    203,916.87/281,396.16 = 113,279.13/x
  3. Step 3: Cross multiply
    203,916.87x = 281,396.16 × 113,279.13
  4. Step 4: Simplify right side
    203,916.87x = 31,876,312,190.14
  5. Step 5: Solve for x
    x = 31,876,312,190.14/203,916.87
  6. Step 6: Final answer
    x = 156,320.13

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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.