Home / 198,989.80-274,517.18-134,438.28

Finding the Fourth Proportional to 198,989.80, 274,517.18 and 134,438.28

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Solution

The fourth proportional to 198,989.80, 274,517.18 and 134,438.28 is: 185,464.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,989.80 : 274,517.18 = 134,438.28 : x
  2. Step 2: Convert to fraction form
    198,989.80/274,517.18 = 134,438.28/x
  3. Step 3: Cross multiply
    198,989.80x = 274,517.18 × 134,438.28
  4. Step 4: Simplify right side
    198,989.80x = 36,905,617,509.65
  5. Step 5: Solve for x
    x = 36,905,617,509.65/198,989.80
  6. Step 6: Final answer
    x = 185,464.87

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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.