Home / 455,314.99-682,853.56-135,380.72

Finding the Fourth Proportional to 455,314.99, 682,853.56 and 135,380.72

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Solution

The fourth proportional to 455,314.99, 682,853.56 and 135,380.72 is: 203,035.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,314.99 : 682,853.56 = 135,380.72 : x
  2. Step 2: Convert to fraction form
    455,314.99/682,853.56 = 135,380.72/x
  3. Step 3: Cross multiply
    455,314.99x = 682,853.56 × 135,380.72
  4. Step 4: Simplify right side
    455,314.99x = 92,445,204,134.99
  5. Step 5: Solve for x
    x = 92,445,204,134.99/455,314.99
  6. Step 6: Final answer
    x = 203,035.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.