Home / 131,619.79-197,450.32-56,761.21

Finding the Fourth Proportional to 131,619.79, 197,450.32 and 56,761.21

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Solution

The fourth proportional to 131,619.79, 197,450.32 and 56,761.21 is: 85,150.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,619.79 : 197,450.32 = 56,761.21 : x
  2. Step 2: Convert to fraction form
    131,619.79/197,450.32 = 56,761.21/x
  3. Step 3: Cross multiply
    131,619.79x = 197,450.32 × 56,761.21
  4. Step 4: Simplify right side
    131,619.79x = 11,207,519,078.09
  5. Step 5: Solve for x
    x = 11,207,519,078.09/131,619.79
  6. Step 6: Final answer
    x = 85,150.71

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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.