Home / 122,115.89-168,520.37-71,163.56

Finding the Fourth Proportional to 122,115.89, 168,520.37 and 71,163.56

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Solution

The fourth proportional to 122,115.89, 168,520.37 and 71,163.56 is: 98,205.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,115.89 : 168,520.37 = 71,163.56 : x
  2. Step 2: Convert to fraction form
    122,115.89/168,520.37 = 71,163.56/x
  3. Step 3: Cross multiply
    122,115.89x = 168,520.37 × 71,163.56
  4. Step 4: Simplify right side
    122,115.89x = 11,992,508,263.30
  5. Step 5: Solve for x
    x = 11,992,508,263.30/122,115.89
  6. Step 6: Final answer
    x = 98,205.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.