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Finding the Fourth Proportional to 144,745.62, 199,725.71 and 90,992.58

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Solution

The fourth proportional to 144,745.62, 199,725.71 and 90,992.58 is: 125,555.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,745.62 : 199,725.71 = 90,992.58 : x
  2. Step 2: Convert to fraction form
    144,745.62/199,725.71 = 90,992.58/x
  3. Step 3: Cross multiply
    144,745.62x = 199,725.71 × 90,992.58
  4. Step 4: Simplify right side
    144,745.62x = 18,173,557,190.27
  5. Step 5: Solve for x
    x = 18,173,557,190.27/144,745.62
  6. Step 6: Final answer
    x = 125,555.14

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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.