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Finding the Fourth Proportional to 162,067, 223,675 and 90,451.63

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Solution

The fourth proportional to 162,067, 223,675 and 90,451.63 is: 124,835.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,067 : 223,675 = 90,451.63 : x
  2. Step 2: Convert to fraction form
    162,067/223,675 = 90,451.63/x
  3. Step 3: Cross multiply
    162,067x = 223,675 × 90,451.63
  4. Step 4: Simplify right side
    162,067x = 20,231,768,340.25
  5. Step 5: Solve for x
    x = 20,231,768,340.25/162,067
  6. Step 6: Final answer
    x = 124,835.83

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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.