Home / 222,540.42-307,106.10-131,940.78

Finding the Fourth Proportional to 222,540.42, 307,106.10 and 131,940.78

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Solution

The fourth proportional to 222,540.42, 307,106.10 and 131,940.78 is: 182,078.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,540.42 : 307,106.10 = 131,940.78 : x
  2. Step 2: Convert to fraction form
    222,540.42/307,106.10 = 131,940.78/x
  3. Step 3: Cross multiply
    222,540.42x = 307,106.10 × 131,940.78
  4. Step 4: Simplify right side
    222,540.42x = 40,519,818,376.76
  5. Step 5: Solve for x
    x = 40,519,818,376.76/222,540.42
  6. Step 6: Final answer
    x = 182,078.47

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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.