Home / 213,024.45-293,999.78-122,380.25

Finding the Fourth Proportional to 213,024.45, 293,999.78 and 122,380.25

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Solution

The fourth proportional to 213,024.45, 293,999.78 and 122,380.25 is: 168,899.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,024.45 : 293,999.78 = 122,380.25 : x
  2. Step 2: Convert to fraction form
    213,024.45/293,999.78 = 122,380.25/x
  3. Step 3: Cross multiply
    213,024.45x = 293,999.78 × 122,380.25
  4. Step 4: Simplify right side
    213,024.45x = 35,979,764,494.44
  5. Step 5: Solve for x
    x = 35,979,764,494.44/213,024.45
  6. Step 6: Final answer
    x = 168,899.69

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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.