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Finding the Fourth Proportional to 188,508.94, 260,135.74 and 103,625.39

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Solution

The fourth proportional to 188,508.94, 260,135.74 and 103,625.39 is: 142,999.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,508.94 : 260,135.74 = 103,625.39 : x
  2. Step 2: Convert to fraction form
    188,508.94/260,135.74 = 103,625.39/x
  3. Step 3: Cross multiply
    188,508.94x = 260,135.74 × 103,625.39
  4. Step 4: Simplify right side
    188,508.94x = 26,956,667,510.44
  5. Step 5: Solve for x
    x = 26,956,667,510.44/188,508.94
  6. Step 6: Final answer
    x = 142,999.41

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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.