Home / 196,390.81-271,007.26-115,821.73

Finding the Fourth Proportional to 196,390.81, 271,007.26 and 115,821.73

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Solution

The fourth proportional to 196,390.81, 271,007.26 and 115,821.73 is: 159,826.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,390.81 : 271,007.26 = 115,821.73 : x
  2. Step 2: Convert to fraction form
    196,390.81/271,007.26 = 115,821.73/x
  3. Step 3: Cross multiply
    196,390.81x = 271,007.26 × 115,821.73
  4. Step 4: Simplify right side
    196,390.81x = 31,388,529,695.76
  5. Step 5: Solve for x
    x = 31,388,529,695.76/196,390.81
  6. Step 6: Final answer
    x = 159,826.88

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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.