Home / 131,138.10-196,692.03-36,375.30

Finding the Fourth Proportional to 131,138.10, 196,692.03 and 36,375.30

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Solution

The fourth proportional to 131,138.10, 196,692.03 and 36,375.30 is: 54,558.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,138.10 : 196,692.03 = 36,375.30 : x
  2. Step 2: Convert to fraction form
    131,138.10/196,692.03 = 36,375.30/x
  3. Step 3: Cross multiply
    131,138.10x = 196,692.03 × 36,375.30
  4. Step 4: Simplify right side
    131,138.10x = 7,154,731,598.86
  5. Step 5: Solve for x
    x = 7,154,731,598.86/131,138.10
  6. Step 6: Final answer
    x = 54,558.76

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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.