Home / 109,069.80-163,614.03-30,183.90

Finding the Fourth Proportional to 109,069.80, 163,614.03 and 30,183.90

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Solution

The fourth proportional to 109,069.80, 163,614.03 and 30,183.90 is: 45,278.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,069.80 : 163,614.03 = 30,183.90 : x
  2. Step 2: Convert to fraction form
    109,069.80/163,614.03 = 30,183.90/x
  3. Step 3: Cross multiply
    109,069.80x = 163,614.03 × 30,183.90
  4. Step 4: Simplify right side
    109,069.80x = 4,938,509,520.12
  5. Step 5: Solve for x
    x = 4,938,509,520.12/109,069.80
  6. Step 6: Final answer
    x = 45,278.43

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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.