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Finding the Fourth Proportional to 188,651.66, 260,358.38 and 108,089.87

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Solution

The fourth proportional to 188,651.66, 260,358.38 and 108,089.87 is: 149,174.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,651.66 : 260,358.38 = 108,089.87 : x
  2. Step 2: Convert to fraction form
    188,651.66/260,358.38 = 108,089.87/x
  3. Step 3: Cross multiply
    188,651.66x = 260,358.38 × 108,089.87
  4. Step 4: Simplify right side
    188,651.66x = 28,142,101,605.37
  5. Step 5: Solve for x
    x = 28,142,101,605.37/188,651.66
  6. Step 6: Final answer
    x = 149,174.95

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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.