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Finding the Fourth Proportional to 131,969.80, 197,952.90 and 43,226.20

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Solution

The fourth proportional to 131,969.80, 197,952.90 and 43,226.20 is: 64,838.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,969.80 : 197,952.90 = 43,226.20 : x
  2. Step 2: Convert to fraction form
    131,969.80/197,952.90 = 43,226.20/x
  3. Step 3: Cross multiply
    131,969.80x = 197,952.90 × 43,226.20
  4. Step 4: Simplify right side
    131,969.80x = 8,556,751,645.98
  5. Step 5: Solve for x
    x = 8,556,751,645.98/131,969.80
  6. Step 6: Final answer
    x = 64,838.71

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1.5x scale

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.