Home / 188,669.79-260,369.37-103,789.08

Finding the Fourth Proportional to 188,669.79, 260,369.37 and 103,789.08

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Solution

The fourth proportional to 188,669.79, 260,369.37 and 103,789.08 is: 143,231.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,669.79 : 260,369.37 = 103,789.08 : x
  2. Step 2: Convert to fraction form
    188,669.79/260,369.37 = 103,789.08/x
  3. Step 3: Cross multiply
    188,669.79x = 260,369.37 × 103,789.08
  4. Step 4: Simplify right side
    188,669.79x = 27,023,497,372.48
  5. Step 5: Solve for x
    x = 27,023,497,372.48/188,669.79
  6. Step 6: Final answer
    x = 143,231.71

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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.