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Finding the Fourth Proportional to 188,546.56, 260,156.94 and 105,763.21

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Solution

The fourth proportional to 188,546.56, 260,156.94 and 105,763.21 is: 145,932.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,546.56 : 260,156.94 = 105,763.21 : x
  2. Step 2: Convert to fraction form
    188,546.56/260,156.94 = 105,763.21/x
  3. Step 3: Cross multiply
    188,546.56x = 260,156.94 × 105,763.21
  4. Step 4: Simplify right side
    188,546.56x = 27,515,033,078.18
  5. Step 5: Solve for x
    x = 27,515,033,078.18/188,546.56
  6. Step 6: Final answer
    x = 145,932.30

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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.