Home / 111,471,213.20-167,206,819.80-85,962,045.20

Finding the Fourth Proportional to 111,471,213.20, 167,206,819.80 and 85,962,045.20

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Solution

The fourth proportional to 111,471,213.20, 167,206,819.80 and 85,962,045.20 is: 128,943,067.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,471,213.20 : 167,206,819.80 = 85,962,045.20 : x
  2. Step 2: Convert to fraction form
    111,471,213.20/167,206,819.80 = 85,962,045.20/x
  3. Step 3: Cross multiply
    111,471,213.20x = 167,206,819.80 × 85,962,045.20
  4. Step 4: Simplify right side
    111,471,213.20x = 14,373,440,201,395,856
  5. Step 5: Solve for x
    x = 14,373,440,201,395,856/111,471,213.20
  6. Step 6: Final answer
    x = 128,943,067.80

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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.