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Finding the Fourth Proportional to 104,404.71, 144,007.16 and 66,661.95

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Solution

The fourth proportional to 104,404.71, 144,007.16 and 66,661.95 is: 91,947.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,404.71 : 144,007.16 = 66,661.95 : x
  2. Step 2: Convert to fraction form
    104,404.71/144,007.16 = 66,661.95/x
  3. Step 3: Cross multiply
    104,404.71x = 144,007.16 × 66,661.95
  4. Step 4: Simplify right side
    104,404.71x = 9,599,797,766.25
  5. Step 5: Solve for x
    x = 9,599,797,766.25/104,404.71
  6. Step 6: Final answer
    x = 91,947.94

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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.