Home / 196,864.80-271,578.96-128,851.84

Finding the Fourth Proportional to 196,864.80, 271,578.96 and 128,851.84

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Solution

The fourth proportional to 196,864.80, 271,578.96 and 128,851.84 is: 177,753.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,864.80 : 271,578.96 = 128,851.84 : x
  2. Step 2: Convert to fraction form
    196,864.80/271,578.96 = 128,851.84/x
  3. Step 3: Cross multiply
    196,864.80x = 271,578.96 × 128,851.84
  4. Step 4: Simplify right side
    196,864.80x = 34,993,448,701.29
  5. Step 5: Solve for x
    x = 34,993,448,701.29/196,864.80
  6. Step 6: Final answer
    x = 177,753.71

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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.