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Finding the Fourth Proportional to 188,990.73, 260,807.85 and 104,107.59

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Solution

The fourth proportional to 188,990.73, 260,807.85 and 104,107.59 is: 143,668.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,990.73 : 260,807.85 = 104,107.59 : x
  2. Step 2: Convert to fraction form
    188,990.73/260,807.85 = 104,107.59/x
  3. Step 3: Cross multiply
    188,990.73x = 260,807.85 × 104,107.59
  4. Step 4: Simplify right side
    188,990.73x = 27,152,076,716.58
  5. Step 5: Solve for x
    x = 27,152,076,716.58/188,990.73
  6. Step 6: Final answer
    x = 143,668.83

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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.