Home / 196,862.81-271,576.19-128,849.84

Finding the Fourth Proportional to 196,862.81, 271,576.19 and 128,849.84

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Solution

The fourth proportional to 196,862.81, 271,576.19 and 128,849.84 is: 177,750.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,862.81 : 271,576.19 = 128,849.84 : x
  2. Step 2: Convert to fraction form
    196,862.81/271,576.19 = 128,849.84/x
  3. Step 3: Cross multiply
    196,862.81x = 271,576.19 × 128,849.84
  4. Step 4: Simplify right side
    196,862.81x = 34,992,548,611.96
  5. Step 5: Solve for x
    x = 34,992,548,611.96/196,862.81
  6. Step 6: Final answer
    x = 177,750.94

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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.