Home / 196,964.66-271,432-143,164.46

Finding the Fourth Proportional to 196,964.66, 271,432 and 143,164.46

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Solution

The fourth proportional to 196,964.66, 271,432 and 143,164.46 is: 197,291.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,964.66 : 271,432 = 143,164.46 : x
  2. Step 2: Convert to fraction form
    196,964.66/271,432 = 143,164.46/x
  3. Step 3: Cross multiply
    196,964.66x = 271,432 × 143,164.46
  4. Step 4: Simplify right side
    196,964.66x = 38,859,415,706.72
  5. Step 5: Solve for x
    x = 38,859,415,706.72/196,964.66
  6. Step 6: Final answer
    x = 197,291.31

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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.