Home / 198,931.07-274,528.38-108,289.64

Finding the Fourth Proportional to 198,931.07, 274,528.38 and 108,289.64

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Solution

The fourth proportional to 198,931.07, 274,528.38 and 108,289.64 is: 149,441.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,931.07 : 274,528.38 = 108,289.64 : x
  2. Step 2: Convert to fraction form
    198,931.07/274,528.38 = 108,289.64/x
  3. Step 3: Cross multiply
    198,931.07x = 274,528.38 × 108,289.64
  4. Step 4: Simplify right side
    198,931.07x = 29,728,579,439.98
  5. Step 5: Solve for x
    x = 29,728,579,439.98/198,931.07
  6. Step 6: Final answer
    x = 149,441.61

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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.