Home / 129,905.19-194,835.83-36,389.43

Finding the Fourth Proportional to 129,905.19, 194,835.83 and 36,389.43

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Solution

The fourth proportional to 129,905.19, 194,835.83 and 36,389.43 is: 54,577.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,905.19 : 194,835.83 = 36,389.43 : x
  2. Step 2: Convert to fraction form
    129,905.19/194,835.83 = 36,389.43/x
  3. Step 3: Cross multiply
    129,905.19x = 194,835.83 × 36,389.43
  4. Step 4: Simplify right side
    129,905.19x = 7,089,964,615.33
  5. Step 5: Solve for x
    x = 7,089,964,615.33/129,905.19
  6. Step 6: Final answer
    x = 54,577.99

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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.