Home / 122,785.45-184,178.22-55,238.58

Finding the Fourth Proportional to 122,785.45, 184,178.22 and 55,238.58

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Solution

The fourth proportional to 122,785.45, 184,178.22 and 55,238.58 is: 82,857.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,785.45 : 184,178.22 = 55,238.58 : x
  2. Step 2: Convert to fraction form
    122,785.45/184,178.22 = 55,238.58/x
  3. Step 3: Cross multiply
    122,785.45x = 184,178.22 × 55,238.58
  4. Step 4: Simplify right side
    122,785.45x = 10,173,744,133.97
  5. Step 5: Solve for x
    x = 10,173,744,133.97/122,785.45
  6. Step 6: Final answer
    x = 82,857.89

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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.