Home / 198,012.60-273,231.23-111,983.31

Finding the Fourth Proportional to 198,012.60, 273,231.23 and 111,983.31

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Solution

The fourth proportional to 198,012.60, 273,231.23 and 111,983.31 is: 154,522.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,012.60 : 273,231.23 = 111,983.31 : x
  2. Step 2: Convert to fraction form
    198,012.60/273,231.23 = 111,983.31/x
  3. Step 3: Cross multiply
    198,012.60x = 273,231.23 × 111,983.31
  4. Step 4: Simplify right side
    198,012.60x = 30,597,336,970.85
  5. Step 5: Solve for x
    x = 30,597,336,970.85/198,012.60
  6. Step 6: Final answer
    x = 154,522.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.