Home / 196,287.25-270,880.05-111,409.78

Finding the Fourth Proportional to 196,287.25, 270,880.05 and 111,409.78

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Solution

The fourth proportional to 196,287.25, 270,880.05 and 111,409.78 is: 153,747.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,287.25 : 270,880.05 = 111,409.78 : x
  2. Step 2: Convert to fraction form
    196,287.25/270,880.05 = 111,409.78/x
  3. Step 3: Cross multiply
    196,287.25x = 270,880.05 × 111,409.78
  4. Step 4: Simplify right side
    196,287.25x = 30,178,686,776.89
  5. Step 5: Solve for x
    x = 30,178,686,776.89/196,287.25
  6. Step 6: Final answer
    x = 153,747.57

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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.