Home / 193,033.65-289,589.19-66,678.51

Finding the Fourth Proportional to 193,033.65, 289,589.19 and 66,678.51

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Solution

The fourth proportional to 193,033.65, 289,589.19 and 66,678.51 is: 100,031.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,033.65 : 289,589.19 = 66,678.51 : x
  2. Step 2: Convert to fraction form
    193,033.65/289,589.19 = 66,678.51/x
  3. Step 3: Cross multiply
    193,033.65x = 289,589.19 × 66,678.51
  4. Step 4: Simplify right side
    193,033.65x = 19,309,375,701.31
  5. Step 5: Solve for x
    x = 19,309,375,701.31/193,033.65
  6. Step 6: Final answer
    x = 100,031.14

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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.