Home / 213,365.98-294,453.48-122,721.85

Finding the Fourth Proportional to 213,365.98, 294,453.48 and 122,721.85

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Solution

The fourth proportional to 213,365.98, 294,453.48 and 122,721.85 is: 169,361.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,365.98 : 294,453.48 = 122,721.85 : x
  2. Step 2: Convert to fraction form
    213,365.98/294,453.48 = 122,721.85/x
  3. Step 3: Cross multiply
    213,365.98x = 294,453.48 × 122,721.85
  4. Step 4: Simplify right side
    213,365.98x = 36,135,875,804.54
  5. Step 5: Solve for x
    x = 36,135,875,804.54/213,365.98
  6. Step 6: Final answer
    x = 169,361.00

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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.