Home / 196,453.82-271,035.24-128,509.58

Finding the Fourth Proportional to 196,453.82, 271,035.24 and 128,509.58

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Solution

The fourth proportional to 196,453.82, 271,035.24 and 128,509.58 is: 177,296.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,453.82 : 271,035.24 = 128,509.58 : x
  2. Step 2: Convert to fraction form
    196,453.82/271,035.24 = 128,509.58/x
  3. Step 3: Cross multiply
    196,453.82x = 271,035.24 × 128,509.58
  4. Step 4: Simplify right side
    196,453.82x = 34,830,624,857.60
  5. Step 5: Solve for x
    x = 34,830,624,857.60/196,453.82
  6. Step 6: Final answer
    x = 177,296.76

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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.