Home / 131,390.39-196,986.24-55,512.43

Finding the Fourth Proportional to 131,390.39, 196,986.24 and 55,512.43

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Solution

The fourth proportional to 131,390.39, 196,986.24 and 55,512.43 is: 83,226.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,390.39 : 196,986.24 = 55,512.43 : x
  2. Step 2: Convert to fraction form
    131,390.39/196,986.24 = 55,512.43/x
  3. Step 3: Cross multiply
    131,390.39x = 196,986.24 × 55,512.43
  4. Step 4: Simplify right side
    131,390.39x = 10,935,184,858.96
  5. Step 5: Solve for x
    x = 10,935,184,858.96/131,390.39
  6. Step 6: Final answer
    x = 83,226.67

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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.