Home / 122,979.40-184,469.10-100,817.80

Finding the Fourth Proportional to 122,979.40, 184,469.10 and 100,817.80

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Solution

The fourth proportional to 122,979.40, 184,469.10 and 100,817.80 is: 151,226.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,979.40 : 184,469.10 = 100,817.80 : x
  2. Step 2: Convert to fraction form
    122,979.40/184,469.10 = 100,817.80/x
  3. Step 3: Cross multiply
    122,979.40x = 184,469.10 × 100,817.80
  4. Step 4: Simplify right side
    122,979.40x = 18,597,768,829.98
  5. Step 5: Solve for x
    x = 18,597,768,829.98/122,979.40
  6. Step 6: Final answer
    x = 151,226.70

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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.