Home / 149,175.27-205,938.05-115,107.21

Finding the Fourth Proportional to 149,175.27, 205,938.05 and 115,107.21

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Solution

The fourth proportional to 149,175.27, 205,938.05 and 115,107.21 is: 158,906.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,175.27 : 205,938.05 = 115,107.21 : x
  2. Step 2: Convert to fraction form
    149,175.27/205,938.05 = 115,107.21/x
  3. Step 3: Cross multiply
    149,175.27x = 205,938.05 × 115,107.21
  4. Step 4: Simplify right side
    149,175.27x = 23,704,953,792.80
  5. Step 5: Solve for x
    x = 23,704,953,792.80/149,175.27
  6. Step 6: Final answer
    x = 158,906.73

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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.