Home / 137,986.28-206,979.42-43,223.87

Finding the Fourth Proportional to 137,986.28, 206,979.42 and 43,223.87

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Solution

The fourth proportional to 137,986.28, 206,979.42 and 43,223.87 is: 64,835.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,986.28 : 206,979.42 = 43,223.87 : x
  2. Step 2: Convert to fraction form
    137,986.28/206,979.42 = 43,223.87/x
  3. Step 3: Cross multiply
    137,986.28x = 206,979.42 × 43,223.87
  4. Step 4: Simplify right side
    137,986.28x = 8,946,451,542.76
  5. Step 5: Solve for x
    x = 8,946,451,542.76/137,986.28
  6. Step 6: Final answer
    x = 64,835.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.