Home / 122,720.30-184,080.45-100,558.70

Finding the Fourth Proportional to 122,720.30, 184,080.45 and 100,558.70

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Solution

The fourth proportional to 122,720.30, 184,080.45 and 100,558.70 is: 150,838.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,720.30 : 184,080.45 = 100,558.70 : x
  2. Step 2: Convert to fraction form
    122,720.30/184,080.45 = 100,558.70/x
  3. Step 3: Cross multiply
    122,720.30x = 184,080.45 × 100,558.70
  4. Step 4: Simplify right side
    122,720.30x = 18,510,890,747.42
  5. Step 5: Solve for x
    x = 18,510,890,747.42/122,720.30
  6. Step 6: Final answer
    x = 150,838.05

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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.