Home / 196,541.04-271,142.58-128,439.82

Finding the Fourth Proportional to 196,541.04, 271,142.58 and 128,439.82

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Solution

The fourth proportional to 196,541.04, 271,142.58 and 128,439.82 is: 177,192.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,541.04 : 271,142.58 = 128,439.82 : x
  2. Step 2: Convert to fraction form
    196,541.04/271,142.58 = 128,439.82/x
  3. Step 3: Cross multiply
    196,541.04x = 271,142.58 × 128,439.82
  4. Step 4: Simplify right side
    196,541.04x = 34,825,504,169.54
  5. Step 5: Solve for x
    x = 34,825,504,169.54/196,541.04
  6. Step 6: Final answer
    x = 177,192.02

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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.