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Finding the Fourth Proportional to 188,889.29, 260,672.96 and 104,009.39

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Solution

The fourth proportional to 188,889.29, 260,672.96 and 104,009.39 is: 143,536.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,889.29 : 260,672.96 = 104,009.39 : x
  2. Step 2: Convert to fraction form
    188,889.29/260,672.96 = 104,009.39/x
  3. Step 3: Cross multiply
    188,889.29x = 260,672.96 × 104,009.39
  4. Step 4: Simplify right side
    188,889.29x = 27,112,435,039.05
  5. Step 5: Solve for x
    x = 27,112,435,039.05/188,889.29
  6. Step 6: Final answer
    x = 143,536.12

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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.