Home / 122,786.20-184,616.70-103,540.60

Finding the Fourth Proportional to 122,786.20, 184,616.70 and 103,540.60

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Solution

The fourth proportional to 122,786.20, 184,616.70 and 103,540.60 is: 155,679.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,786.20 : 184,616.70 = 103,540.60 : x
  2. Step 2: Convert to fraction form
    122,786.20/184,616.70 = 103,540.60/x
  3. Step 3: Cross multiply
    122,786.20x = 184,616.70 × 103,540.60
  4. Step 4: Simplify right side
    122,786.20x = 19,115,323,888.02
  5. Step 5: Solve for x
    x = 19,115,323,888.02/122,786.20
  6. Step 6: Final answer
    x = 155,679.74

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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.