Home / 198,773.61-274,299.67-108,129.69

Finding the Fourth Proportional to 198,773.61, 274,299.67 and 108,129.69

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Solution

The fourth proportional to 198,773.61, 274,299.67 and 108,129.69 is: 149,214.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,773.61 : 274,299.67 = 108,129.69 : x
  2. Step 2: Convert to fraction form
    198,773.61/274,299.67 = 108,129.69/x
  3. Step 3: Cross multiply
    198,773.61x = 274,299.67 × 108,129.69
  4. Step 4: Simplify right side
    198,773.61x = 29,659,937,743.55
  5. Step 5: Solve for x
    x = 29,659,937,743.55/198,773.61
  6. Step 6: Final answer
    x = 149,214.67

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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.