Home / 129,878.10-194,722.11-41,081.94

Finding the Fourth Proportional to 129,878.10, 194,722.11 and 41,081.94

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Solution

The fourth proportional to 129,878.10, 194,722.11 and 41,081.94 is: 61,592.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,878.10 : 194,722.11 = 41,081.94 : x
  2. Step 2: Convert to fraction form
    129,878.10/194,722.11 = 41,081.94/x
  3. Step 3: Cross multiply
    129,878.10x = 194,722.11 × 41,081.94
  4. Step 4: Simplify right side
    129,878.10x = 7,999,562,039.69
  5. Step 5: Solve for x
    x = 7,999,562,039.69/129,878.10
  6. Step 6: Final answer
    x = 61,592.85

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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.