Home / 129,884.45-194,844.90-41,128.70

Finding the Fourth Proportional to 129,884.45, 194,844.90 and 41,128.70

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Solution

The fourth proportional to 129,884.45, 194,844.90 and 41,128.70 is: 61,698.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,884.45 : 194,844.90 = 41,128.70 : x
  2. Step 2: Convert to fraction form
    129,884.45/194,844.90 = 41,128.70/x
  3. Step 3: Cross multiply
    129,884.45x = 194,844.90 × 41,128.70
  4. Step 4: Simplify right side
    129,884.45x = 8,013,717,438.63
  5. Step 5: Solve for x
    x = 8,013,717,438.63/129,884.45
  6. Step 6: Final answer
    x = 61,698.82

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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.