Home / 213,986.57-295,297.83-118,491.21

Finding the Fourth Proportional to 213,986.57, 295,297.83 and 118,491.21

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Solution

The fourth proportional to 213,986.57, 295,297.83 and 118,491.21 is: 163,515.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,986.57 : 295,297.83 = 118,491.21 : x
  2. Step 2: Convert to fraction form
    213,986.57/295,297.83 = 118,491.21/x
  3. Step 3: Cross multiply
    213,986.57x = 295,297.83 × 118,491.21
  4. Step 4: Simplify right side
    213,986.57x = 34,990,196,594.62
  5. Step 5: Solve for x
    x = 34,990,196,594.62/213,986.57
  6. Step 6: Final answer
    x = 163,515.86

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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.