Home / 117,704.51-162,428.83-66,721.95

Finding the Fourth Proportional to 117,704.51, 162,428.83 and 66,721.95

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Solution

The fourth proportional to 117,704.51, 162,428.83 and 66,721.95 is: 92,074.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,704.51 : 162,428.83 = 66,721.95 : x
  2. Step 2: Convert to fraction form
    117,704.51/162,428.83 = 66,721.95/x
  3. Step 3: Cross multiply
    117,704.51x = 162,428.83 × 66,721.95
  4. Step 4: Simplify right side
    117,704.51x = 10,837,568,845.33
  5. Step 5: Solve for x
    x = 10,837,568,845.33/117,704.51
  6. Step 6: Final answer
    x = 92,074.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.