Home / 193,642.07-290,455.20-67,310.96

Finding the Fourth Proportional to 193,642.07, 290,455.20 and 67,310.96

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Solution

The fourth proportional to 193,642.07, 290,455.20 and 67,310.96 is: 100,963.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,642.07 : 290,455.20 = 67,310.96 : x
  2. Step 2: Convert to fraction form
    193,642.07/290,455.20 = 67,310.96/x
  3. Step 3: Cross multiply
    193,642.07x = 290,455.20 × 67,310.96
  4. Step 4: Simplify right side
    193,642.07x = 19,550,816,896.72
  5. Step 5: Solve for x
    x = 19,550,816,896.72/193,642.07
  6. Step 6: Final answer
    x = 100,963.69

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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.