Home / 196,680.20-295,020.30-72,069.80

Finding the Fourth Proportional to 196,680.20, 295,020.30 and 72,069.80

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Solution

The fourth proportional to 196,680.20, 295,020.30 and 72,069.80 is: 108,104.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,680.20 : 295,020.30 = 72,069.80 : x
  2. Step 2: Convert to fraction form
    196,680.20/295,020.30 = 72,069.80/x
  3. Step 3: Cross multiply
    196,680.20x = 295,020.30 × 72,069.80
  4. Step 4: Simplify right side
    196,680.20x = 21,262,054,016.94
  5. Step 5: Solve for x
    x = 21,262,054,016.94/196,680.20
  6. Step 6: Final answer
    x = 108,104.70

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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.