Home / 206,789.74-309,964.07-117,851.74

Finding the Fourth Proportional to 206,789.74, 309,964.07 and 117,851.74

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Solution

The fourth proportional to 206,789.74, 309,964.07 and 117,851.74 is: 176,651.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,789.74 : 309,964.07 = 117,851.74 : x
  2. Step 2: Convert to fraction form
    206,789.74/309,964.07 = 117,851.74/x
  3. Step 3: Cross multiply
    206,789.74x = 309,964.07 × 117,851.74
  4. Step 4: Simplify right side
    206,789.74x = 36,529,804,506.70
  5. Step 5: Solve for x
    x = 36,529,804,506.70/206,789.74
  6. Step 6: Final answer
    x = 176,651.92

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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.