Home / 213,181.80-294,183.18-117,686.45

Finding the Fourth Proportional to 213,181.80, 294,183.18 and 117,686.45

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Solution

The fourth proportional to 213,181.80, 294,183.18 and 117,686.45 is: 162,403.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,181.80 : 294,183.18 = 117,686.45 : x
  2. Step 2: Convert to fraction form
    213,181.80/294,183.18 = 117,686.45/x
  3. Step 3: Cross multiply
    213,181.80x = 294,183.18 × 117,686.45
  4. Step 4: Simplify right side
    213,181.80x = 34,621,373,736.18
  5. Step 5: Solve for x
    x = 34,621,373,736.18/213,181.80
  6. Step 6: Final answer
    x = 162,403.04

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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.