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Finding the Fourth Proportional to 144,991.44, 200,074.76 and 81,316.96

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Solution

The fourth proportional to 144,991.44, 200,074.76 and 81,316.96 is: 112,209.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,991.44 : 200,074.76 = 81,316.96 : x
  2. Step 2: Convert to fraction form
    144,991.44/200,074.76 = 81,316.96/x
  3. Step 3: Cross multiply
    144,991.44x = 200,074.76 × 81,316.96
  4. Step 4: Simplify right side
    144,991.44x = 16,269,471,255.93
  5. Step 5: Solve for x
    x = 16,269,471,255.93/144,991.44
  6. Step 6: Final answer
    x = 112,209.87

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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.