Home / 156,190.70-234,040.68-120,738.86

Finding the Fourth Proportional to 156,190.70, 234,040.68 and 120,738.86

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Solution

The fourth proportional to 156,190.70, 234,040.68 and 120,738.86 is: 180,918.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,190.70 : 234,040.68 = 120,738.86 : x
  2. Step 2: Convert to fraction form
    156,190.70/234,040.68 = 120,738.86/x
  3. Step 3: Cross multiply
    156,190.70x = 234,040.68 × 120,738.86
  4. Step 4: Simplify right side
    156,190.70x = 28,257,804,896.82
  5. Step 5: Solve for x
    x = 28,257,804,896.82/156,190.70
  6. Step 6: Final answer
    x = 180,918.61

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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.