Home / 455,914.25-683,770.60-131,631.90

Finding the Fourth Proportional to 455,914.25, 683,770.60 and 131,631.90

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Solution

The fourth proportional to 455,914.25, 683,770.60 and 131,631.90 is: 197,418.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,914.25 : 683,770.60 = 131,631.90 : x
  2. Step 2: Convert to fraction form
    455,914.25/683,770.60 = 131,631.90/x
  3. Step 3: Cross multiply
    455,914.25x = 683,770.60 × 131,631.90
  4. Step 4: Simplify right side
    455,914.25x = 90,006,025,058.96
  5. Step 5: Solve for x
    x = 90,006,025,058.96/455,914.25
  6. Step 6: Final answer
    x = 197,418.76

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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.