Home / 196,439.42-295,078.92-140,638.11

Finding the Fourth Proportional to 196,439.42, 295,078.92 and 140,638.11

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Solution

The fourth proportional to 196,439.42, 295,078.92 and 140,638.11 is: 211,257.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,439.42 : 295,078.92 = 140,638.11 : x
  2. Step 2: Convert to fraction form
    196,439.42/295,078.92 = 140,638.11/x
  3. Step 3: Cross multiply
    196,439.42x = 295,078.92 × 140,638.11
  4. Step 4: Simplify right side
    196,439.42x = 41,499,342,407.20
  5. Step 5: Solve for x
    x = 41,499,342,407.20/196,439.42
  6. Step 6: Final answer
    x = 211,257.72

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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.