Home / 129,819.71-194,750.07-54,940.25

Finding the Fourth Proportional to 129,819.71, 194,750.07 and 54,940.25

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Solution

The fourth proportional to 129,819.71, 194,750.07 and 54,940.25 is: 82,419.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,819.71 : 194,750.07 = 54,940.25 : x
  2. Step 2: Convert to fraction form
    129,819.71/194,750.07 = 54,940.25/x
  3. Step 3: Cross multiply
    129,819.71x = 194,750.07 × 54,940.25
  4. Step 4: Simplify right side
    129,819.71x = 10,699,616,821.71
  5. Step 5: Solve for x
    x = 10,699,616,821.71/129,819.71
  6. Step 6: Final answer
    x = 82,419.05

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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.