Home / 140,072.67-193,289.49-79,644.06

Finding the Fourth Proportional to 140,072.67, 193,289.49 and 79,644.06

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Solution

The fourth proportional to 140,072.67, 193,289.49 and 79,644.06 is: 109,902.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,072.67 : 193,289.49 = 79,644.06 : x
  2. Step 2: Convert to fraction form
    140,072.67/193,289.49 = 79,644.06/x
  3. Step 3: Cross multiply
    140,072.67x = 193,289.49 × 79,644.06
  4. Step 4: Simplify right side
    140,072.67x = 15,394,359,738.93
  5. Step 5: Solve for x
    x = 15,394,359,738.93/140,072.67
  6. Step 6: Final answer
    x = 109,902.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.