Home / 120,804.21-166,793.22-75,502.56

Finding the Fourth Proportional to 120,804.21, 166,793.22 and 75,502.56

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Solution

The fourth proportional to 120,804.21, 166,793.22 and 75,502.56 is: 104,245.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,804.21 : 166,793.22 = 75,502.56 : x
  2. Step 2: Convert to fraction form
    120,804.21/166,793.22 = 75,502.56/x
  3. Step 3: Cross multiply
    120,804.21x = 166,793.22 × 75,502.56
  4. Step 4: Simplify right side
    120,804.21x = 12,593,315,100.64
  5. Step 5: Solve for x
    x = 12,593,315,100.64/120,804.21
  6. Step 6: Final answer
    x = 104,245.66

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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.