Home / 196,310.08-270,915.36-111,430.72

Finding the Fourth Proportional to 196,310.08, 270,915.36 and 111,430.72

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Solution

The fourth proportional to 196,310.08, 270,915.36 and 111,430.72 is: 153,778.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,310.08 : 270,915.36 = 111,430.72 : x
  2. Step 2: Convert to fraction form
    196,310.08/270,915.36 = 111,430.72/x
  3. Step 3: Cross multiply
    196,310.08x = 270,915.36 × 111,430.72
  4. Step 4: Simplify right side
    196,310.08x = 30,188,293,623.86
  5. Step 5: Solve for x
    x = 30,188,293,623.86/196,310.08
  6. Step 6: Final answer
    x = 153,778.62

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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.