Home / 454,561.26-681,732.53-139,020.90

Finding the Fourth Proportional to 454,561.26, 681,732.53 and 139,020.90

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Solution

The fourth proportional to 454,561.26, 681,732.53 and 139,020.90 is: 208,497.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,561.26 : 681,732.53 = 139,020.90 : x
  2. Step 2: Convert to fraction form
    454,561.26/681,732.53 = 139,020.90/x
  3. Step 3: Cross multiply
    454,561.26x = 681,732.53 × 139,020.90
  4. Step 4: Simplify right side
    454,561.26x = 94,775,067,149.60
  5. Step 5: Solve for x
    x = 94,775,067,149.60/454,561.26
  6. Step 6: Final answer
    x = 208,497.90

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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.