Home / 149,743.58-206,644.57-81,760.34

Finding the Fourth Proportional to 149,743.58, 206,644.57 and 81,760.34

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Solution

The fourth proportional to 149,743.58, 206,644.57 and 81,760.34 is: 112,828.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,743.58 : 206,644.57 = 81,760.34 : x
  2. Step 2: Convert to fraction form
    149,743.58/206,644.57 = 81,760.34/x
  3. Step 3: Cross multiply
    149,743.58x = 206,644.57 × 81,760.34
  4. Step 4: Simplify right side
    149,743.58x = 16,895,330,921.17
  5. Step 5: Solve for x
    x = 16,895,330,921.17/149,743.58
  6. Step 6: Final answer
    x = 112,828.42

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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.