Home / 129,516.24-194,288.24-40,772.40

Finding the Fourth Proportional to 129,516.24, 194,288.24 and 40,772.40

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Solution

The fourth proportional to 129,516.24, 194,288.24 and 40,772.40 is: 61,162.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,516.24 : 194,288.24 = 40,772.40 : x
  2. Step 2: Convert to fraction form
    129,516.24/194,288.24 = 40,772.40/x
  3. Step 3: Cross multiply
    129,516.24x = 194,288.24 × 40,772.40
  4. Step 4: Simplify right side
    129,516.24x = 7,921,597,836.58
  5. Step 5: Solve for x
    x = 7,921,597,836.58/129,516.24
  6. Step 6: Final answer
    x = 61,162.97

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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.