Home / 129,836.74-194,755.12-31,340.74

Finding the Fourth Proportional to 129,836.74, 194,755.12 and 31,340.74

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Solution

The fourth proportional to 129,836.74, 194,755.12 and 31,340.74 is: 47,011.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,836.74 : 194,755.12 = 31,340.74 : x
  2. Step 2: Convert to fraction form
    129,836.74/194,755.12 = 31,340.74/x
  3. Step 3: Cross multiply
    129,836.74x = 194,755.12 × 31,340.74
  4. Step 4: Simplify right side
    129,836.74x = 6,103,769,579.59
  5. Step 5: Solve for x
    x = 6,103,769,579.59/129,836.74
  6. Step 6: Final answer
    x = 47,011.11

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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.