Home / 120,019.05-180,023.85-31,273.29

Finding the Fourth Proportional to 120,019.05, 180,023.85 and 31,273.29

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Solution

The fourth proportional to 120,019.05, 180,023.85 and 31,273.29 is: 46,908.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,019.05 : 180,023.85 = 31,273.29 : x
  2. Step 2: Convert to fraction form
    120,019.05/180,023.85 = 31,273.29/x
  3. Step 3: Cross multiply
    120,019.05x = 180,023.85 × 31,273.29
  4. Step 4: Simplify right side
    120,019.05x = 5,629,938,067.97
  5. Step 5: Solve for x
    x = 5,629,938,067.97/120,019.05
  6. Step 6: Final answer
    x = 46,908.70

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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.