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Finding the Fourth Proportional to 188,736.52, 260,454.42 and 107,079.88

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Solution

The fourth proportional to 188,736.52, 260,454.42 and 107,079.88 is: 147,769.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,736.52 : 260,454.42 = 107,079.88 : x
  2. Step 2: Convert to fraction form
    188,736.52/260,454.42 = 107,079.88/x
  3. Step 3: Cross multiply
    188,736.52x = 260,454.42 × 107,079.88
  4. Step 4: Simplify right side
    188,736.52x = 27,889,428,039.07
  5. Step 5: Solve for x
    x = 27,889,428,039.07/188,736.52
  6. Step 6: Final answer
    x = 147,769.11

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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.