Home / 154,161.15-231,238.44-71,055.15

Finding the Fourth Proportional to 154,161.15, 231,238.44 and 71,055.15

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Solution

The fourth proportional to 154,161.15, 231,238.44 and 71,055.15 is: 106,581.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,161.15 : 231,238.44 = 71,055.15 : x
  2. Step 2: Convert to fraction form
    154,161.15/231,238.44 = 71,055.15/x
  3. Step 3: Cross multiply
    154,161.15x = 231,238.44 × 71,055.15
  4. Step 4: Simplify right side
    154,161.15x = 16,430,682,039.97
  5. Step 5: Solve for x
    x = 16,430,682,039.97/154,161.15
  6. Step 6: Final answer
    x = 106,581.21

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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.