Home / 111,471,271.20-167,206,906.80-85,962,103.20

Finding the Fourth Proportional to 111,471,271.20, 167,206,906.80 and 85,962,103.20

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Solution

The fourth proportional to 111,471,271.20, 167,206,906.80 and 85,962,103.20 is: 128,943,154.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,471,271.20 : 167,206,906.80 = 85,962,103.20 : x
  2. Step 2: Convert to fraction form
    111,471,271.20/167,206,906.80 = 85,962,103.20/x
  3. Step 3: Cross multiply
    111,471,271.20x = 167,206,906.80 × 85,962,103.20
  4. Step 4: Simplify right side
    111,471,271.20x = 14,373,457,378,094,384
  5. Step 5: Solve for x
    x = 14,373,457,378,094,384/111,471,271.20
  6. Step 6: Final answer
    x = 128,943,154.80

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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.