Home / 129,631.48-194,440.70-50,760.20

Finding the Fourth Proportional to 129,631.48, 194,440.70 and 50,760.20

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Solution

The fourth proportional to 129,631.48, 194,440.70 and 50,760.20 is: 76,137.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,631.48 : 194,440.70 = 50,760.20 : x
  2. Step 2: Convert to fraction form
    129,631.48/194,440.70 = 50,760.20/x
  3. Step 3: Cross multiply
    129,631.48x = 194,440.70 × 50,760.20
  4. Step 4: Simplify right side
    129,631.48x = 9,869,848,820.14
  5. Step 5: Solve for x
    x = 9,869,848,820.14/129,631.48
  6. Step 6: Final answer
    x = 76,137.75

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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.