Home / 125,997.12-188,992.23-54,919.72

Finding the Fourth Proportional to 125,997.12, 188,992.23 and 54,919.72

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Solution

The fourth proportional to 125,997.12, 188,992.23 and 54,919.72 is: 82,378.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,997.12 : 188,992.23 = 54,919.72 : x
  2. Step 2: Convert to fraction form
    125,997.12/188,992.23 = 54,919.72/x
  3. Step 3: Cross multiply
    125,997.12x = 188,992.23 × 54,919.72
  4. Step 4: Simplify right side
    125,997.12x = 10,379,399,881.30
  5. Step 5: Solve for x
    x = 10,379,399,881.30/125,997.12
  6. Step 6: Final answer
    x = 82,378.07

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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.