Home / 189,266.07-261,191.44-107,581.37

Finding the Fourth Proportional to 189,266.07, 261,191.44 and 107,581.37

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Solution

The fourth proportional to 189,266.07, 261,191.44 and 107,581.37 is: 148,464.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,266.07 : 261,191.44 = 107,581.37 : x
  2. Step 2: Convert to fraction form
    189,266.07/261,191.44 = 107,581.37/x
  3. Step 3: Cross multiply
    189,266.07x = 261,191.44 × 107,581.37
  4. Step 4: Simplify right side
    189,266.07x = 28,099,331,170.85
  5. Step 5: Solve for x
    x = 28,099,331,170.85/189,266.07
  6. Step 6: Final answer
    x = 148,464.71

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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.