Home / 209,148.99-313,584.80-76,013.43

Finding the Fourth Proportional to 209,148.99, 313,584.80 and 76,013.43

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Solution

The fourth proportional to 209,148.99, 313,584.80 and 76,013.43 is: 113,969.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,148.99 : 313,584.80 = 76,013.43 : x
  2. Step 2: Convert to fraction form
    209,148.99/313,584.80 = 76,013.43/x
  3. Step 3: Cross multiply
    209,148.99x = 313,584.80 × 76,013.43
  4. Step 4: Simplify right side
    209,148.99x = 23,836,655,863.80
  5. Step 5: Solve for x
    x = 23,836,655,863.80/209,148.99
  6. Step 6: Final answer
    x = 113,969.74

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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.