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Finding the Fourth Proportional to 188,760.87, 260,496.12 and 108,203.64

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Solution

The fourth proportional to 188,760.87, 260,496.12 and 108,203.64 is: 149,324.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,760.87 : 260,496.12 = 108,203.64 : x
  2. Step 2: Convert to fraction form
    188,760.87/260,496.12 = 108,203.64/x
  3. Step 3: Cross multiply
    188,760.87x = 260,496.12 × 108,203.64
  4. Step 4: Simplify right side
    188,760.87x = 28,186,628,389.88
  5. Step 5: Solve for x
    x = 28,186,628,389.88/188,760.87
  6. Step 6: Final answer
    x = 149,324.53

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1.5x scale

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.