Home / 198,633.75-274,114.58-109,209.75

Finding the Fourth Proportional to 198,633.75, 274,114.58 and 109,209.75

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Solution

The fourth proportional to 198,633.75, 274,114.58 and 109,209.75 is: 150,709.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,633.75 : 274,114.58 = 109,209.75 : x
  2. Step 2: Convert to fraction form
    198,633.75/274,114.58 = 109,209.75/x
  3. Step 3: Cross multiply
    198,633.75x = 274,114.58 × 109,209.75
  4. Step 4: Simplify right side
    198,633.75x = 29,935,984,207.11
  5. Step 5: Solve for x
    x = 29,935,984,207.11/198,633.75
  6. Step 6: Final answer
    x = 150,709.46

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1.5x scale

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.