Home / 197,112.54-295,811.37-78,816.90

Finding the Fourth Proportional to 197,112.54, 295,811.37 and 78,816.90

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Solution

The fourth proportional to 197,112.54, 295,811.37 and 78,816.90 is: 118,282.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,112.54 : 295,811.37 = 78,816.90 : x
  2. Step 2: Convert to fraction form
    197,112.54/295,811.37 = 78,816.90/x
  3. Step 3: Cross multiply
    197,112.54x = 295,811.37 × 78,816.90
  4. Step 4: Simplify right side
    197,112.54x = 23,314,935,168.15
  5. Step 5: Solve for x
    x = 23,314,935,168.15/197,112.54
  6. Step 6: Final answer
    x = 118,282.35

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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.