Home / 80,741.33-120,595.23-73,131.24

Finding the Fourth Proportional to 80,741.33, 120,595.23 and 73,131.24

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Solution

The fourth proportional to 80,741.33, 120,595.23 and 73,131.24 is: 109,228.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,741.33 : 120,595.23 = 73,131.24 : x
  2. Step 2: Convert to fraction form
    80,741.33/120,595.23 = 73,131.24/x
  3. Step 3: Cross multiply
    80,741.33x = 120,595.23 × 73,131.24
  4. Step 4: Simplify right side
    80,741.33x = 8,819,278,707.99
  5. Step 5: Solve for x
    x = 8,819,278,707.99/80,741.33
  6. Step 6: Final answer
    x = 109,228.81

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.