Home / 208,779.06-313,103.07-68,504.82

Finding the Fourth Proportional to 208,779.06, 313,103.07 and 68,504.82

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Solution

The fourth proportional to 208,779.06, 313,103.07 and 68,504.82 is: 102,735.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,779.06 : 313,103.07 = 68,504.82 : x
  2. Step 2: Convert to fraction form
    208,779.06/313,103.07 = 68,504.82/x
  3. Step 3: Cross multiply
    208,779.06x = 313,103.07 × 68,504.82
  4. Step 4: Simplify right side
    208,779.06x = 21,449,069,451.80
  5. Step 5: Solve for x
    x = 21,449,069,451.80/208,779.06
  6. Step 6: Final answer
    x = 102,735.73

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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.