Home / 105,520.92-145,618.44-60,198.78

Finding the Fourth Proportional to 105,520.92, 145,618.44 and 60,198.78

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Solution

The fourth proportional to 105,520.92, 145,618.44 and 60,198.78 is: 83,074.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,520.92 : 145,618.44 = 60,198.78 : x
  2. Step 2: Convert to fraction form
    105,520.92/145,618.44 = 60,198.78/x
  3. Step 3: Cross multiply
    105,520.92x = 145,618.44 × 60,198.78
  4. Step 4: Simplify right side
    105,520.92x = 8,766,052,433.50
  5. Step 5: Solve for x
    x = 8,766,052,433.50/105,520.92
  6. Step 6: Final answer
    x = 83,074.07

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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.