Home / 122,100.20-183,150.30-111,213.80

Finding the Fourth Proportional to 122,100.20, 183,150.30 and 111,213.80

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Solution

The fourth proportional to 122,100.20, 183,150.30 and 111,213.80 is: 166,820.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,100.20 : 183,150.30 = 111,213.80 : x
  2. Step 2: Convert to fraction form
    122,100.20/183,150.30 = 111,213.80/x
  3. Step 3: Cross multiply
    122,100.20x = 183,150.30 × 111,213.80
  4. Step 4: Simplify right side
    122,100.20x = 20,368,840,834.14
  5. Step 5: Solve for x
    x = 20,368,840,834.14/122,100.20
  6. Step 6: Final answer
    x = 166,820.70

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1.5x scale

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.