Home / 198,700.91-274,209.08-108,057.72

Finding the Fourth Proportional to 198,700.91, 274,209.08 and 108,057.72

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Solution

The fourth proportional to 198,700.91, 274,209.08 and 108,057.72 is: 149,120.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,700.91 : 274,209.08 = 108,057.72 : x
  2. Step 2: Convert to fraction form
    198,700.91/274,209.08 = 108,057.72/x
  3. Step 3: Cross multiply
    198,700.91x = 274,209.08 × 108,057.72
  4. Step 4: Simplify right side
    198,700.91x = 29,630,407,447.81
  5. Step 5: Solve for x
    x = 29,630,407,447.81/198,700.91
  6. Step 6: Final answer
    x = 149,120.65

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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.