Home / 122,961.20-184,614.60-76,305.20

Finding the Fourth Proportional to 122,961.20, 184,614.60 and 76,305.20

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Solution

The fourth proportional to 122,961.20, 184,614.60 and 76,305.20 is: 114,565.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,961.20 : 184,614.60 = 76,305.20 : x
  2. Step 2: Convert to fraction form
    122,961.20/184,614.60 = 76,305.20/x
  3. Step 3: Cross multiply
    122,961.20x = 184,614.60 × 76,305.20
  4. Step 4: Simplify right side
    122,961.20x = 14,087,053,975.92
  5. Step 5: Solve for x
    x = 14,087,053,975.92/122,961.20
  6. Step 6: Final answer
    x = 114,565.03

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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.