Home / 137,791.58-190,140.75-83,364.03

Finding the Fourth Proportional to 137,791.58, 190,140.75 and 83,364.03

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Solution

The fourth proportional to 137,791.58, 190,140.75 and 83,364.03 is: 115,035.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,791.58 : 190,140.75 = 83,364.03 : x
  2. Step 2: Convert to fraction form
    137,791.58/190,140.75 = 83,364.03/x
  3. Step 3: Cross multiply
    137,791.58x = 190,140.75 × 83,364.03
  4. Step 4: Simplify right side
    137,791.58x = 15,850,899,187.22
  5. Step 5: Solve for x
    x = 15,850,899,187.22/137,791.58
  6. Step 6: Final answer
    x = 115,035.33

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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.