Home / 199,429.26-299,079.24-66,273.78

Finding the Fourth Proportional to 199,429.26, 299,079.24 and 66,273.78

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Solution

The fourth proportional to 199,429.26, 299,079.24 and 66,273.78 is: 99,389.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,429.26 : 299,079.24 = 66,273.78 : x
  2. Step 2: Convert to fraction form
    199,429.26/299,079.24 = 66,273.78/x
  3. Step 3: Cross multiply
    199,429.26x = 299,079.24 × 66,273.78
  4. Step 4: Simplify right side
    199,429.26x = 19,821,111,754.33
  5. Step 5: Solve for x
    x = 19,821,111,754.33/199,429.26
  6. Step 6: Final answer
    x = 99,389.19

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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.