Home / 198,850.75-274,368.55-112,789.18

Finding the Fourth Proportional to 198,850.75, 274,368.55 and 112,789.18

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Solution

The fourth proportional to 198,850.75, 274,368.55 and 112,789.18 is: 155,623.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,850.75 : 274,368.55 = 112,789.18 : x
  2. Step 2: Convert to fraction form
    198,850.75/274,368.55 = 112,789.18/x
  3. Step 3: Cross multiply
    198,850.75x = 274,368.55 × 112,789.18
  4. Step 4: Simplify right side
    198,850.75x = 30,945,803,772.29
  5. Step 5: Solve for x
    x = 30,945,803,772.29/198,850.75
  6. Step 6: Final answer
    x = 155,623.27

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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.