Home / 120,079.57-180,123-41,192.66

Finding the Fourth Proportional to 120,079.57, 180,123 and 41,192.66

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Solution

The fourth proportional to 120,079.57, 180,123 and 41,192.66 is: 61,790.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,079.57 : 180,123 = 41,192.66 : x
  2. Step 2: Convert to fraction form
    120,079.57/180,123 = 41,192.66/x
  3. Step 3: Cross multiply
    120,079.57x = 180,123 × 41,192.66
  4. Step 4: Simplify right side
    120,079.57x = 7,419,744,596.57
  5. Step 5: Solve for x
    x = 7,419,744,596.57/120,079.57
  6. Step 6: Final answer
    x = 61,790.23

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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.