Home / 213,913.18-295,203.69-117,115.43

Finding the Fourth Proportional to 213,913.18, 295,203.69 and 117,115.43

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Solution

The fourth proportional to 213,913.18, 295,203.69 and 117,115.43 is: 161,621.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,913.18 : 295,203.69 = 117,115.43 : x
  2. Step 2: Convert to fraction form
    213,913.18/295,203.69 = 117,115.43/x
  3. Step 3: Cross multiply
    213,913.18x = 295,203.69 × 117,115.43
  4. Step 4: Simplify right side
    213,913.18x = 34,572,905,615.92
  5. Step 5: Solve for x
    x = 34,572,905,615.92/213,913.18
  6. Step 6: Final answer
    x = 161,621.21

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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.