Home / 189,825.21-261,950.49-109,255.32

Finding the Fourth Proportional to 189,825.21, 261,950.49 and 109,255.32

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Solution

The fourth proportional to 189,825.21, 261,950.49 and 109,255.32 is: 150,767.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,825.21 : 261,950.49 = 109,255.32 : x
  2. Step 2: Convert to fraction form
    189,825.21/261,950.49 = 109,255.32/x
  3. Step 3: Cross multiply
    189,825.21x = 261,950.49 × 109,255.32
  4. Step 4: Simplify right side
    189,825.21x = 28,619,484,609.11
  5. Step 5: Solve for x
    x = 28,619,484,609.11/189,825.21
  6. Step 6: Final answer
    x = 150,767.56

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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.