Home / 149,743.79-206,644.86-81,760.55

Finding the Fourth Proportional to 149,743.79, 206,644.86 and 81,760.55

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Solution

The fourth proportional to 149,743.79, 206,644.86 and 81,760.55 is: 112,828.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,743.79 : 206,644.86 = 81,760.55 : x
  2. Step 2: Convert to fraction form
    149,743.79/206,644.86 = 81,760.55/x
  3. Step 3: Cross multiply
    149,743.79x = 206,644.86 × 81,760.55
  4. Step 4: Simplify right side
    149,743.79x = 16,895,398,231.49
  5. Step 5: Solve for x
    x = 16,895,398,231.49/149,743.79
  6. Step 6: Final answer
    x = 112,828.71

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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.