Home / 208,163.94-287,255.21-122,111.03

Finding the Fourth Proportional to 208,163.94, 287,255.21 and 122,111.03

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Solution

The fourth proportional to 208,163.94, 287,255.21 and 122,111.03 is: 168,506.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,163.94 : 287,255.21 = 122,111.03 : x
  2. Step 2: Convert to fraction form
    208,163.94/287,255.21 = 122,111.03/x
  3. Step 3: Cross multiply
    208,163.94x = 287,255.21 × 122,111.03
  4. Step 4: Simplify right side
    208,163.94x = 35,077,027,519.14
  5. Step 5: Solve for x
    x = 35,077,027,519.14/208,163.94
  6. Step 6: Final answer
    x = 168,506.74

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1.5x scale

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.