Home / 208,219.80-312,099.30-114,792.60

Finding the Fourth Proportional to 208,219.80, 312,099.30 and 114,792.60

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Solution

The fourth proportional to 208,219.80, 312,099.30 and 114,792.60 is: 172,061.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,219.80 : 312,099.30 = 114,792.60 : x
  2. Step 2: Convert to fraction form
    208,219.80/312,099.30 = 114,792.60/x
  3. Step 3: Cross multiply
    208,219.80x = 312,099.30 × 114,792.60
  4. Step 4: Simplify right side
    208,219.80x = 35,826,690,105.18
  5. Step 5: Solve for x
    x = 35,826,690,105.18/208,219.80
  6. Step 6: Final answer
    x = 172,061.88

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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.