Home / 120,209.23-180,324.24-31,462.66

Finding the Fourth Proportional to 120,209.23, 180,324.24 and 31,462.66

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Solution

The fourth proportional to 120,209.23, 180,324.24 and 31,462.66 is: 47,196.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,209.23 : 180,324.24 = 31,462.66 : x
  2. Step 2: Convert to fraction form
    120,209.23/180,324.24 = 31,462.66/x
  3. Step 3: Cross multiply
    120,209.23x = 180,324.24 × 31,462.66
  4. Step 4: Simplify right side
    120,209.23x = 5,673,480,252.88
  5. Step 5: Solve for x
    x = 5,673,480,252.88/120,209.23
  6. Step 6: Final answer
    x = 47,196.71

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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.