Home / 208,840.80-313,261.20-120,048.60

Finding the Fourth Proportional to 208,840.80, 313,261.20 and 120,048.60

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Solution

The fourth proportional to 208,840.80, 313,261.20 and 120,048.60 is: 180,072.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,840.80 : 313,261.20 = 120,048.60 : x
  2. Step 2: Convert to fraction form
    208,840.80/313,261.20 = 120,048.60/x
  3. Step 3: Cross multiply
    208,840.80x = 313,261.20 × 120,048.60
  4. Step 4: Simplify right side
    208,840.80x = 37,606,568,494.32
  5. Step 5: Solve for x
    x = 37,606,568,494.32/208,840.80
  6. Step 6: Final answer
    x = 180,072.90

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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.