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Finding the Fourth Proportional to 136,272.52, 188,054.20 and 75,843.15

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Solution

The fourth proportional to 136,272.52, 188,054.20 and 75,843.15 is: 104,662.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,272.52 : 188,054.20 = 75,843.15 : x
  2. Step 2: Convert to fraction form
    136,272.52/188,054.20 = 75,843.15/x
  3. Step 3: Cross multiply
    136,272.52x = 188,054.20 × 75,843.15
  4. Step 4: Simplify right side
    136,272.52x = 14,262,622,898.73
  5. Step 5: Solve for x
    x = 14,262,622,898.73/136,272.52
  6. Step 6: Final answer
    x = 104,662.50

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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.