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Finding the Fourth Proportional to 131,805.99, 197,668.09 and 47,555.20

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Solution

The fourth proportional to 131,805.99, 197,668.09 and 47,555.20 is: 71,318.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,805.99 : 197,668.09 = 47,555.20 : x
  2. Step 2: Convert to fraction form
    131,805.99/197,668.09 = 47,555.20/x
  3. Step 3: Cross multiply
    131,805.99x = 197,668.09 × 47,555.20
  4. Step 4: Simplify right side
    131,805.99x = 9,400,145,553.57
  5. Step 5: Solve for x
    x = 9,400,145,553.57/131,805.99
  6. Step 6: Final answer
    x = 71,318.05

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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.