Home / 129,786.70-194,711.39-48,734.39

Finding the Fourth Proportional to 129,786.70, 194,711.39 and 48,734.39

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Solution

The fourth proportional to 129,786.70, 194,711.39 and 48,734.39 is: 73,113.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,786.70 : 194,711.39 = 48,734.39 : x
  2. Step 2: Convert to fraction form
    129,786.70/194,711.39 = 48,734.39/x
  3. Step 3: Cross multiply
    129,786.70x = 194,711.39 × 48,734.39
  4. Step 4: Simplify right side
    129,786.70x = 9,489,140,721.48
  5. Step 5: Solve for x
    x = 9,489,140,721.48/129,786.70
  6. Step 6: Final answer
    x = 73,113.35

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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.