Home / 206,045.78-309,184.70-111,274.56

Finding the Fourth Proportional to 206,045.78, 309,184.70 and 111,274.56

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Solution

The fourth proportional to 206,045.78, 309,184.70 and 111,274.56 is: 166,974.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,045.78 : 309,184.70 = 111,274.56 : x
  2. Step 2: Convert to fraction form
    206,045.78/309,184.70 = 111,274.56/x
  3. Step 3: Cross multiply
    206,045.78x = 309,184.70 × 111,274.56
  4. Step 4: Simplify right side
    206,045.78x = 34,404,390,894.86
  5. Step 5: Solve for x
    x = 34,404,390,894.86/206,045.78
  6. Step 6: Final answer
    x = 166,974.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.