Home / 135,383.36-203,019.15-51,129.19

Finding the Fourth Proportional to 135,383.36, 203,019.15 and 51,129.19

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Solution

The fourth proportional to 135,383.36, 203,019.15 and 51,129.19 is: 76,672.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,383.36 : 203,019.15 = 51,129.19 : x
  2. Step 2: Convert to fraction form
    135,383.36/203,019.15 = 51,129.19/x
  3. Step 3: Cross multiply
    135,383.36x = 203,019.15 × 51,129.19
  4. Step 4: Simplify right side
    135,383.36x = 10,380,204,378.18
  5. Step 5: Solve for x
    x = 10,380,204,378.18/135,383.36
  6. Step 6: Final answer
    x = 76,672.67

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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.