Home / 213,905.80-295,190.09-117,115.93

Finding the Fourth Proportional to 213,905.80, 295,190.09 and 117,115.93

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Solution

The fourth proportional to 213,905.80, 295,190.09 and 117,115.93 is: 161,620.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,905.80 : 295,190.09 = 117,115.93 : x
  2. Step 2: Convert to fraction form
    213,905.80/295,190.09 = 117,115.93/x
  3. Step 3: Cross multiply
    213,905.80x = 295,190.09 × 117,115.93
  4. Step 4: Simplify right side
    213,905.80x = 34,571,461,471.95
  5. Step 5: Solve for x
    x = 34,571,461,471.95/213,905.80
  6. Step 6: Final answer
    x = 161,620.03

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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.