Home / 120,469.24-180,712.73-31,722.13

Finding the Fourth Proportional to 120,469.24, 180,712.73 and 31,722.13

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Solution

The fourth proportional to 120,469.24, 180,712.73 and 31,722.13 is: 47,585.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,469.24 : 180,712.73 = 31,722.13 : x
  2. Step 2: Convert to fraction form
    120,469.24/180,712.73 = 31,722.13/x
  3. Step 3: Cross multiply
    120,469.24x = 180,712.73 × 31,722.13
  4. Step 4: Simplify right side
    120,469.24x = 5,732,591,810.15
  5. Step 5: Solve for x
    x = 5,732,591,810.15/120,469.24
  6. Step 6: Final answer
    x = 47,585.53

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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.