Home / 196,291.72-270,890.88-111,416.68

Finding the Fourth Proportional to 196,291.72, 270,890.88 and 111,416.68

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Solution

The fourth proportional to 196,291.72, 270,890.88 and 111,416.68 is: 153,759.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,291.72 : 270,890.88 = 111,416.68 : x
  2. Step 2: Convert to fraction form
    196,291.72/270,890.88 = 111,416.68/x
  3. Step 3: Cross multiply
    196,291.72x = 270,890.88 × 111,416.68
  4. Step 4: Simplify right side
    196,291.72x = 30,181,762,491.88
  5. Step 5: Solve for x
    x = 30,181,762,491.88/196,291.72
  6. Step 6: Final answer
    x = 153,759.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.