Home / 129,630.48-194,439.20-50,759.20

Finding the Fourth Proportional to 129,630.48, 194,439.20 and 50,759.20

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Solution

The fourth proportional to 129,630.48, 194,439.20 and 50,759.20 is: 76,136.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,630.48 : 194,439.20 = 50,759.20 : x
  2. Step 2: Convert to fraction form
    129,630.48/194,439.20 = 50,759.20/x
  3. Step 3: Cross multiply
    129,630.48x = 194,439.20 × 50,759.20
  4. Step 4: Simplify right side
    129,630.48x = 9,869,578,240.64
  5. Step 5: Solve for x
    x = 9,869,578,240.64/129,630.48
  6. Step 6: Final answer
    x = 76,136.25

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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.