Home / 196,819.20-295,228.80-126,777.60

Finding the Fourth Proportional to 196,819.20, 295,228.80 and 126,777.60

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Solution

The fourth proportional to 196,819.20, 295,228.80 and 126,777.60 is: 190,166.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,819.20 : 295,228.80 = 126,777.60 : x
  2. Step 2: Convert to fraction form
    196,819.20/295,228.80 = 126,777.60/x
  3. Step 3: Cross multiply
    196,819.20x = 295,228.80 × 126,777.60
  4. Step 4: Simplify right side
    196,819.20x = 37,428,398,714.88
  5. Step 5: Solve for x
    x = 37,428,398,714.88/196,819.20
  6. Step 6: Final answer
    x = 190,166.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.