Home / 212,902.16-293,791.50-122,194.31

Finding the Fourth Proportional to 212,902.16, 293,791.50 and 122,194.31

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Solution

The fourth proportional to 212,902.16, 293,791.50 and 122,194.31 is: 168,620.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,902.16 : 293,791.50 = 122,194.31 : x
  2. Step 2: Convert to fraction form
    212,902.16/293,791.50 = 122,194.31/x
  3. Step 3: Cross multiply
    212,902.16x = 293,791.50 × 122,194.31
  4. Step 4: Simplify right side
    212,902.16x = 35,899,648,157.41
  5. Step 5: Solve for x
    x = 35,899,648,157.41/212,902.16
  6. Step 6: Final answer
    x = 168,620.41

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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.