Home / 189,834.37-261,896.09-109,218.51

Finding the Fourth Proportional to 189,834.37, 261,896.09 and 109,218.51

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Solution

The fourth proportional to 189,834.37, 261,896.09 and 109,218.51 is: 150,678.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,834.37 : 261,896.09 = 109,218.51 : x
  2. Step 2: Convert to fraction form
    189,834.37/261,896.09 = 109,218.51/x
  3. Step 3: Cross multiply
    189,834.37x = 261,896.09 × 109,218.51
  4. Step 4: Simplify right side
    189,834.37x = 28,603,900,178.53
  5. Step 5: Solve for x
    x = 28,603,900,178.53/189,834.37
  6. Step 6: Final answer
    x = 150,678.20

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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.