Home / 198,784.10-274,323.84-108,142.04

Finding the Fourth Proportional to 198,784.10, 274,323.84 and 108,142.04

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Solution

The fourth proportional to 198,784.10, 274,323.84 and 108,142.04 is: 149,236.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,784.10 : 274,323.84 = 108,142.04 : x
  2. Step 2: Convert to fraction form
    198,784.10/274,323.84 = 108,142.04/x
  3. Step 3: Cross multiply
    198,784.10x = 274,323.84 × 108,142.04
  4. Step 4: Simplify right side
    198,784.10x = 29,665,939,678.23
  5. Step 5: Solve for x
    x = 29,665,939,678.23/198,784.10
  6. Step 6: Final answer
    x = 149,236.98

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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.