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Finding the Fourth Proportional to 188,604.62, 260,269.16 and 103,721.68

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Solution

The fourth proportional to 188,604.62, 260,269.16 and 103,721.68 is: 143,133.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,604.62 : 260,269.16 = 103,721.68 : x
  2. Step 2: Convert to fraction form
    188,604.62/260,269.16 = 103,721.68/x
  3. Step 3: Cross multiply
    188,604.62x = 260,269.16 × 103,721.68
  4. Step 4: Simplify right side
    188,604.62x = 26,995,554,527.39
  5. Step 5: Solve for x
    x = 26,995,554,527.39/188,604.62
  6. Step 6: Final answer
    x = 143,133.05

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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.