Home / 129,869.32-194,778.06-41,107.72

Finding the Fourth Proportional to 129,869.32, 194,778.06 and 41,107.72

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Solution

The fourth proportional to 129,869.32, 194,778.06 and 41,107.72 is: 61,653.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,869.32 : 194,778.06 = 41,107.72 : x
  2. Step 2: Convert to fraction form
    129,869.32/194,778.06 = 41,107.72/x
  3. Step 3: Cross multiply
    129,869.32x = 194,778.06 × 41,107.72
  4. Step 4: Simplify right side
    129,869.32x = 8,006,881,952.62
  5. Step 5: Solve for x
    x = 8,006,881,952.62/129,869.32
  6. Step 6: Final answer
    x = 61,653.38

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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.