Home / 197,168.55-295,771.05-78,815.40

Finding the Fourth Proportional to 197,168.55, 295,771.05 and 78,815.40

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Solution

The fourth proportional to 197,168.55, 295,771.05 and 78,815.40 is: 118,230.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,168.55 : 295,771.05 = 78,815.40 : x
  2. Step 2: Convert to fraction form
    197,168.55/295,771.05 = 78,815.40/x
  3. Step 3: Cross multiply
    197,168.55x = 295,771.05 × 78,815.40
  4. Step 4: Simplify right side
    197,168.55x = 23,311,313,614.17
  5. Step 5: Solve for x
    x = 23,311,313,614.17/197,168.55
  6. Step 6: Final answer
    x = 118,230.39

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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.