Home / 208,104.90-312,200.55-67,874.10

Finding the Fourth Proportional to 208,104.90, 312,200.55 and 67,874.10

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Solution

The fourth proportional to 208,104.90, 312,200.55 and 67,874.10 is: 101,825.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,104.90 : 312,200.55 = 67,874.10 : x
  2. Step 2: Convert to fraction form
    208,104.90/312,200.55 = 67,874.10/x
  3. Step 3: Cross multiply
    208,104.90x = 312,200.55 × 67,874.10
  4. Step 4: Simplify right side
    208,104.90x = 21,190,331,350.76
  5. Step 5: Solve for x
    x = 21,190,331,350.76/208,104.90
  6. Step 6: Final answer
    x = 101,825.24

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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.