Home / 120,169.24-179,991.42-99,042.82

Finding the Fourth Proportional to 120,169.24, 179,991.42 and 99,042.82

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Solution

The fourth proportional to 120,169.24, 179,991.42 and 99,042.82 is: 148,347.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,169.24 : 179,991.42 = 99,042.82 : x
  2. Step 2: Convert to fraction form
    120,169.24/179,991.42 = 99,042.82/x
  3. Step 3: Cross multiply
    120,169.24x = 179,991.42 × 99,042.82
  4. Step 4: Simplify right side
    120,169.24x = 17,826,856,991.22
  5. Step 5: Solve for x
    x = 17,826,856,991.22/120,169.24
  6. Step 6: Final answer
    x = 148,347.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.