Home / 129,604.20-194,382.30-36,090.60

Finding the Fourth Proportional to 129,604.20, 194,382.30 and 36,090.60

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Solution

The fourth proportional to 129,604.20, 194,382.30 and 36,090.60 is: 54,129.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,604.20 : 194,382.30 = 36,090.60 : x
  2. Step 2: Convert to fraction form
    129,604.20/194,382.30 = 36,090.60/x
  3. Step 3: Cross multiply
    129,604.20x = 194,382.30 × 36,090.60
  4. Step 4: Simplify right side
    129,604.20x = 7,015,373,836.38
  5. Step 5: Solve for x
    x = 7,015,373,836.38/129,604.20
  6. Step 6: Final answer
    x = 54,129.22

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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.