Home / 189,814.54-261,945.26-103,773.71

Finding the Fourth Proportional to 189,814.54, 261,945.26 and 103,773.71

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Solution

The fourth proportional to 189,814.54, 261,945.26 and 103,773.71 is: 143,208.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,814.54 : 261,945.26 = 103,773.71 : x
  2. Step 2: Convert to fraction form
    189,814.54/261,945.26 = 103,773.71/x
  3. Step 3: Cross multiply
    189,814.54x = 261,945.26 × 103,773.71
  4. Step 4: Simplify right side
    189,814.54x = 27,183,031,447.11
  5. Step 5: Solve for x
    x = 27,183,031,447.11/189,814.54
  6. Step 6: Final answer
    x = 143,208.37

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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.