Home / 135,826.56-203,739.03-73,890.72

Finding the Fourth Proportional to 135,826.56, 203,739.03 and 73,890.72

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Solution

The fourth proportional to 135,826.56, 203,739.03 and 73,890.72 is: 110,835.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,826.56 : 203,739.03 = 73,890.72 : x
  2. Step 2: Convert to fraction form
    135,826.56/203,739.03 = 73,890.72/x
  3. Step 3: Cross multiply
    135,826.56x = 203,739.03 × 73,890.72
  4. Step 4: Simplify right side
    135,826.56x = 15,054,423,618.80
  5. Step 5: Solve for x
    x = 15,054,423,618.80/135,826.56
  6. Step 6: Final answer
    x = 110,835.64

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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.