Home / 196,300.80-270,896.40-111,419.28

Finding the Fourth Proportional to 196,300.80, 270,896.40 and 111,419.28

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Solution

The fourth proportional to 196,300.80, 270,896.40 and 111,419.28 is: 153,759.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,300.80 : 270,896.40 = 111,419.28 : x
  2. Step 2: Convert to fraction form
    196,300.80/270,896.40 = 111,419.28/x
  3. Step 3: Cross multiply
    196,300.80x = 270,896.40 × 111,419.28
  4. Step 4: Simplify right side
    196,300.80x = 30,183,081,842.59
  5. Step 5: Solve for x
    x = 30,183,081,842.59/196,300.80
  6. Step 6: Final answer
    x = 153,759.34

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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.