Home / 149,749.27-206,658.24-81,770.56

Finding the Fourth Proportional to 149,749.27, 206,658.24 and 81,770.56

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Solution

The fourth proportional to 149,749.27, 206,658.24 and 81,770.56 is: 112,845.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,749.27 : 206,658.24 = 81,770.56 : x
  2. Step 2: Convert to fraction form
    149,749.27/206,658.24 = 81,770.56/x
  3. Step 3: Cross multiply
    149,749.27x = 206,658.24 × 81,770.56
  4. Step 4: Simplify right side
    149,749.27x = 16,898,559,496.77
  5. Step 5: Solve for x
    x = 16,898,559,496.77/149,749.27
  6. Step 6: Final answer
    x = 112,845.69

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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.