Home / 129,930.30-194,878.13-41,192.78

Finding the Fourth Proportional to 129,930.30, 194,878.13 and 41,192.78

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Solution

The fourth proportional to 129,930.30, 194,878.13 and 41,192.78 is: 61,783.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,930.30 : 194,878.13 = 41,192.78 : x
  2. Step 2: Convert to fraction form
    129,930.30/194,878.13 = 41,192.78/x
  3. Step 3: Cross multiply
    129,930.30x = 194,878.13 × 41,192.78
  4. Step 4: Simplify right side
    129,930.30x = 8,027,570,755.55
  5. Step 5: Solve for x
    x = 8,027,570,755.55/129,930.30
  6. Step 6: Final answer
    x = 61,783.67

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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.