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Finding the Fourth Proportional to 144,371.85, 199,227.44 and 79,836.90

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Solution

The fourth proportional to 144,371.85, 199,227.44 and 79,836.90 is: 110,171.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,371.85 : 199,227.44 = 79,836.90 : x
  2. Step 2: Convert to fraction form
    144,371.85/199,227.44 = 79,836.90/x
  3. Step 3: Cross multiply
    144,371.85x = 199,227.44 × 79,836.90
  4. Step 4: Simplify right side
    144,371.85x = 15,905,699,809.21
  5. Step 5: Solve for x
    x = 15,905,699,809.21/144,371.85
  6. Step 6: Final answer
    x = 110,171.75

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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.