Home / 122,786.16-184,179.24-81,223.44

Finding the Fourth Proportional to 122,786.16, 184,179.24 and 81,223.44

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Solution

The fourth proportional to 122,786.16, 184,179.24 and 81,223.44 is: 121,835.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,786.16 : 184,179.24 = 81,223.44 : x
  2. Step 2: Convert to fraction form
    122,786.16/184,179.24 = 81,223.44/x
  3. Step 3: Cross multiply
    122,786.16x = 184,179.24 × 81,223.44
  4. Step 4: Simplify right side
    122,786.16x = 14,959,671,449.39
  5. Step 5: Solve for x
    x = 14,959,671,449.39/122,786.16
  6. Step 6: Final answer
    x = 121,835.16

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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.