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Finding the Fourth Proportional to 159,137.71, 238,709.31 and 53,959.39

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Solution

The fourth proportional to 159,137.71, 238,709.31 and 53,959.39 is: 80,940.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,137.71 : 238,709.31 = 53,959.39 : x
  2. Step 2: Convert to fraction form
    159,137.71/238,709.31 = 53,959.39/x
  3. Step 3: Cross multiply
    159,137.71x = 238,709.31 × 53,959.39
  4. Step 4: Simplify right side
    159,137.71x = 12,880,608,754.92
  5. Step 5: Solve for x
    x = 12,880,608,754.92/159,137.71
  6. Step 6: Final answer
    x = 80,940.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.