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Finding the Fourth Proportional to 171,891.50, 257,940.94 and 73,395.50

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Solution

The fourth proportional to 171,891.50, 257,940.94 and 73,395.50 is: 110,137.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,891.50 : 257,940.94 = 73,395.50 : x
  2. Step 2: Convert to fraction form
    171,891.50/257,940.94 = 73,395.50/x
  3. Step 3: Cross multiply
    171,891.50x = 257,940.94 × 73,395.50
  4. Step 4: Simplify right side
    171,891.50x = 18,931,704,261.77
  5. Step 5: Solve for x
    x = 18,931,704,261.77/171,891.50
  6. Step 6: Final answer
    x = 110,137.52

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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.