Home / 208,835.20-313,252.80-125,891.20

Finding the Fourth Proportional to 208,835.20, 313,252.80 and 125,891.20

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Solution

The fourth proportional to 208,835.20, 313,252.80 and 125,891.20 is: 188,836.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,835.20 : 313,252.80 = 125,891.20 : x
  2. Step 2: Convert to fraction form
    208,835.20/313,252.80 = 125,891.20/x
  3. Step 3: Cross multiply
    208,835.20x = 313,252.80 × 125,891.20
  4. Step 4: Simplify right side
    208,835.20x = 39,435,770,895.36
  5. Step 5: Solve for x
    x = 39,435,770,895.36/208,835.20
  6. Step 6: Final answer
    x = 188,836.80

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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.