Home / 130,109.10-194,860.50-126,517.71

Finding the Fourth Proportional to 130,109.10, 194,860.50 and 126,517.71

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Solution

The fourth proportional to 130,109.10, 194,860.50 and 126,517.71 is: 189,481.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,109.10 : 194,860.50 = 126,517.71 : x
  2. Step 2: Convert to fraction form
    130,109.10/194,860.50 = 126,517.71/x
  3. Step 3: Cross multiply
    130,109.10x = 194,860.50 × 126,517.71
  4. Step 4: Simplify right side
    130,109.10x = 24,653,304,229.46
  5. Step 5: Solve for x
    x = 24,653,304,229.46/130,109.10
  6. Step 6: Final answer
    x = 189,481.78

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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.