Home / 129,515.64-194,158.20-50,611.92

Finding the Fourth Proportional to 129,515.64, 194,158.20 and 50,611.92

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Solution

The fourth proportional to 129,515.64, 194,158.20 and 50,611.92 is: 75,872.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,515.64 : 194,158.20 = 50,611.92 : x
  2. Step 2: Convert to fraction form
    129,515.64/194,158.20 = 50,611.92/x
  3. Step 3: Cross multiply
    129,515.64x = 194,158.20 × 50,611.92
  4. Step 4: Simplify right side
    129,515.64x = 9,826,719,285.74
  5. Step 5: Solve for x
    x = 9,826,719,285.74/129,515.64
  6. Step 6: Final answer
    x = 75,872.84

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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.