Home / 122,905.38-184,361.58-66,772.38

Finding the Fourth Proportional to 122,905.38, 184,361.58 and 66,772.38

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Solution

The fourth proportional to 122,905.38, 184,361.58 and 66,772.38 is: 100,160.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,905.38 : 184,361.58 = 66,772.38 : x
  2. Step 2: Convert to fraction form
    122,905.38/184,361.58 = 66,772.38/x
  3. Step 3: Cross multiply
    122,905.38x = 184,361.58 × 66,772.38
  4. Step 4: Simplify right side
    122,905.38x = 12,310,261,477.16
  5. Step 5: Solve for x
    x = 12,310,261,477.16/122,905.38
  6. Step 6: Final answer
    x = 100,160.48

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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.