Home / 109,105.26-163,657.88-30,219.48

Finding the Fourth Proportional to 109,105.26, 163,657.88 and 30,219.48

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Solution

The fourth proportional to 109,105.26, 163,657.88 and 30,219.48 is: 45,329.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,105.26 : 163,657.88 = 30,219.48 : x
  2. Step 2: Convert to fraction form
    109,105.26/163,657.88 = 30,219.48/x
  3. Step 3: Cross multiply
    109,105.26x = 163,657.88 × 30,219.48
  4. Step 4: Simplify right side
    109,105.26x = 4,945,655,880.41
  5. Step 5: Solve for x
    x = 4,945,655,880.41/109,105.26
  6. Step 6: Final answer
    x = 45,329.22

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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.