Home / 136,211.10-187,977.42-113,512.14

Finding the Fourth Proportional to 136,211.10, 187,977.42 and 113,512.14

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Solution

The fourth proportional to 136,211.10, 187,977.42 and 113,512.14 is: 156,651.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,211.10 : 187,977.42 = 113,512.14 : x
  2. Step 2: Convert to fraction form
    136,211.10/187,977.42 = 113,512.14/x
  3. Step 3: Cross multiply
    136,211.10x = 187,977.42 × 113,512.14
  4. Step 4: Simplify right side
    136,211.10x = 21,337,719,215.88
  5. Step 5: Solve for x
    x = 21,337,719,215.88/136,211.10
  6. Step 6: Final answer
    x = 156,651.84

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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.