Home / 196,850.39-271,582.47-128,906.10

Finding the Fourth Proportional to 196,850.39, 271,582.47 and 128,906.10

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Solution

The fourth proportional to 196,850.39, 271,582.47 and 128,906.10 is: 177,843.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,850.39 : 271,582.47 = 128,906.10 : x
  2. Step 2: Convert to fraction form
    196,850.39/271,582.47 = 128,906.10/x
  3. Step 3: Cross multiply
    196,850.39x = 271,582.47 × 128,906.10
  4. Step 4: Simplify right side
    196,850.39x = 35,008,637,036.07
  5. Step 5: Solve for x
    x = 35,008,637,036.07/196,850.39
  6. Step 6: Final answer
    x = 177,843.88

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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.