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Finding the Fourth Proportional to 188,887.56, 260,668.08 and 102,849

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Solution

The fourth proportional to 188,887.56, 260,668.08 and 102,849 is: 141,933.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,887.56 : 260,668.08 = 102,849 : x
  2. Step 2: Convert to fraction form
    188,887.56/260,668.08 = 102,849/x
  3. Step 3: Cross multiply
    188,887.56x = 260,668.08 × 102,849
  4. Step 4: Simplify right side
    188,887.56x = 26,809,451,359.92
  5. Step 5: Solve for x
    x = 26,809,451,359.92/188,887.56
  6. Step 6: Final answer
    x = 141,933.39

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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.