Home / 196,728.75-295,115.40-72,069.75

Finding the Fourth Proportional to 196,728.75, 295,115.40 and 72,069.75

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Solution

The fourth proportional to 196,728.75, 295,115.40 and 72,069.75 is: 108,112.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,728.75 : 295,115.40 = 72,069.75 : x
  2. Step 2: Convert to fraction form
    196,728.75/295,115.40 = 72,069.75/x
  3. Step 3: Cross multiply
    196,728.75x = 295,115.40 × 72,069.75
  4. Step 4: Simplify right side
    196,728.75x = 21,268,893,099.15
  5. Step 5: Solve for x
    x = 21,268,893,099.15/196,728.75
  6. Step 6: Final answer
    x = 108,112.79

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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.