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Finding the Fourth Proportional to 128,866.73, 193,253.73 and 44,604

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Solution

The fourth proportional to 128,866.73, 193,253.73 and 44,604 is: 66,889.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,866.73 : 193,253.73 = 44,604 : x
  2. Step 2: Convert to fraction form
    128,866.73/193,253.73 = 44,604/x
  3. Step 3: Cross multiply
    128,866.73x = 193,253.73 × 44,604
  4. Step 4: Simplify right side
    128,866.73x = 8,619,889,372.92
  5. Step 5: Solve for x
    x = 8,619,889,372.92/128,866.73
  6. Step 6: Final answer
    x = 66,889.95

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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.