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Finding the Fourth Proportional to 197,129.80, 295,694.70 and 91,959.40

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Solution

The fourth proportional to 197,129.80, 295,694.70 and 91,959.40 is: 137,939.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,129.80 : 295,694.70 = 91,959.40 : x
  2. Step 2: Convert to fraction form
    197,129.80/295,694.70 = 91,959.40/x
  3. Step 3: Cross multiply
    197,129.80x = 295,694.70 × 91,959.40
  4. Step 4: Simplify right side
    197,129.80x = 27,191,907,195.18
  5. Step 5: Solve for x
    x = 27,191,907,195.18/197,129.80
  6. Step 6: Final answer
    x = 137,939.10

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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.