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Finding the Fourth Proportional to 75,198.59, 112,844.67 and 68,191.29

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Solution

The fourth proportional to 75,198.59, 112,844.67 and 68,191.29 is: 102,329.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,198.59 : 112,844.67 = 68,191.29 : x
  2. Step 2: Convert to fraction form
    75,198.59/112,844.67 = 68,191.29/x
  3. Step 3: Cross multiply
    75,198.59x = 112,844.67 × 68,191.29
  4. Step 4: Simplify right side
    75,198.59x = 7,695,023,616.92
  5. Step 5: Solve for x
    x = 7,695,023,616.92/75,198.59
  6. Step 6: Final answer
    x = 102,329.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.