Home / 129,840.60-194,724.45-41,121.30

Finding the Fourth Proportional to 129,840.60, 194,724.45 and 41,121.30

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Solution

The fourth proportional to 129,840.60, 194,724.45 and 41,121.30 is: 61,670.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,840.60 : 194,724.45 = 41,121.30 : x
  2. Step 2: Convert to fraction form
    129,840.60/194,724.45 = 41,121.30/x
  3. Step 3: Cross multiply
    129,840.60x = 194,724.45 × 41,121.30
  4. Step 4: Simplify right side
    129,840.60x = 8,007,322,525.79
  5. Step 5: Solve for x
    x = 8,007,322,525.79/129,840.60
  6. Step 6: Final answer
    x = 61,670.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.