Home / 140,379.24-193,723.20-79,120.56

Finding the Fourth Proportional to 140,379.24, 193,723.20 and 79,120.56

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Solution

The fourth proportional to 140,379.24, 193,723.20 and 79,120.56 is: 109,186.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,379.24 : 193,723.20 = 79,120.56 : x
  2. Step 2: Convert to fraction form
    140,379.24/193,723.20 = 79,120.56/x
  3. Step 3: Cross multiply
    140,379.24x = 193,723.20 × 79,120.56
  4. Step 4: Simplify right side
    140,379.24x = 15,327,488,068.99
  5. Step 5: Solve for x
    x = 15,327,488,068.99/140,379.24
  6. Step 6: Final answer
    x = 109,186.29

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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.