Home / 131,868.64-197,834.07-43,121.80

Finding the Fourth Proportional to 131,868.64, 197,834.07 and 43,121.80

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Solution

The fourth proportional to 131,868.64, 197,834.07 and 43,121.80 is: 64,692.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,868.64 : 197,834.07 = 43,121.80 : x
  2. Step 2: Convert to fraction form
    131,868.64/197,834.07 = 43,121.80/x
  3. Step 3: Cross multiply
    131,868.64x = 197,834.07 × 43,121.80
  4. Step 4: Simplify right side
    131,868.64x = 8,530,960,210.56
  5. Step 5: Solve for x
    x = 8,530,960,210.56/131,868.64
  6. Step 6: Final answer
    x = 64,692.87

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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.