Home / 189,974.78-262,165.26-109,400.57

Finding the Fourth Proportional to 189,974.78, 262,165.26 and 109,400.57

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Solution

The fourth proportional to 189,974.78, 262,165.26 and 109,400.57 is: 150,972.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,974.78 : 262,165.26 = 109,400.57 : x
  2. Step 2: Convert to fraction form
    189,974.78/262,165.26 = 109,400.57/x
  3. Step 3: Cross multiply
    189,974.78x = 262,165.26 × 109,400.57
  4. Step 4: Simplify right side
    189,974.78x = 28,681,029,820.05
  5. Step 5: Solve for x
    x = 28,681,029,820.05/189,974.78
  6. Step 6: Final answer
    x = 150,972.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.