Home / 215,627.19-323,083.23-131,131.77

Finding the Fourth Proportional to 215,627.19, 323,083.23 and 131,131.77

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Solution

The fourth proportional to 215,627.19, 323,083.23 and 131,131.77 is: 196,480.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,627.19 : 323,083.23 = 131,131.77 : x
  2. Step 2: Convert to fraction form
    215,627.19/323,083.23 = 131,131.77/x
  3. Step 3: Cross multiply
    215,627.19x = 323,083.23 × 131,131.77
  4. Step 4: Simplify right side
    215,627.19x = 42,366,474,191.80
  5. Step 5: Solve for x
    x = 42,366,474,191.80/215,627.19
  6. Step 6: Final answer
    x = 196,480.21

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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.