Home / 198,618.46-274,103.48-122,141.80

Finding the Fourth Proportional to 198,618.46, 274,103.48 and 122,141.80

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Solution

The fourth proportional to 198,618.46, 274,103.48 and 122,141.80 is: 168,561.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,618.46 : 274,103.48 = 122,141.80 : x
  2. Step 2: Convert to fraction form
    198,618.46/274,103.48 = 122,141.80/x
  3. Step 3: Cross multiply
    198,618.46x = 274,103.48 × 122,141.80
  4. Step 4: Simplify right side
    198,618.46x = 33,479,492,394.40
  5. Step 5: Solve for x
    x = 33,479,492,394.40/198,618.46
  6. Step 6: Final answer
    x = 168,561.84

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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.