Home / 120,981.22-181,471.23-31,023.54

Finding the Fourth Proportional to 120,981.22, 181,471.23 and 31,023.54

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Solution

The fourth proportional to 120,981.22, 181,471.23 and 31,023.54 is: 46,535.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,981.22 : 181,471.23 = 31,023.54 : x
  2. Step 2: Convert to fraction form
    120,981.22/181,471.23 = 31,023.54/x
  3. Step 3: Cross multiply
    120,981.22x = 181,471.23 × 31,023.54
  4. Step 4: Simplify right side
    120,981.22x = 5,629,879,962.75
  5. Step 5: Solve for x
    x = 5,629,879,962.75/120,981.22
  6. Step 6: Final answer
    x = 46,535.16

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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.