Home / 213,853.80-320,435.10-134,826.60

Finding the Fourth Proportional to 213,853.80, 320,435.10 and 134,826.60

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Solution

The fourth proportional to 213,853.80, 320,435.10 and 134,826.60 is: 202,022.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,853.80 : 320,435.10 = 134,826.60 : x
  2. Step 2: Convert to fraction form
    213,853.80/320,435.10 = 134,826.60/x
  3. Step 3: Cross multiply
    213,853.80x = 320,435.10 × 134,826.60
  4. Step 4: Simplify right side
    213,853.80x = 43,203,175,053.66
  5. Step 5: Solve for x
    x = 43,203,175,053.66/213,853.80
  6. Step 6: Final answer
    x = 202,022.01

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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.