Home / 196,314.30-270,915.03-111,432.78

Finding the Fourth Proportional to 196,314.30, 270,915.03 and 111,432.78

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Solution

The fourth proportional to 196,314.30, 270,915.03 and 111,432.78 is: 153,777.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,314.30 : 270,915.03 = 111,432.78 : x
  2. Step 2: Convert to fraction form
    196,314.30/270,915.03 = 111,432.78/x
  3. Step 3: Cross multiply
    196,314.30x = 270,915.03 × 111,432.78
  4. Step 4: Simplify right side
    196,314.30x = 30,188,814,936.68
  5. Step 5: Solve for x
    x = 30,188,814,936.68/196,314.30
  6. Step 6: Final answer
    x = 153,777.97

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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.