Home / 139,427.67-192,413.03-75,769.56

Finding the Fourth Proportional to 139,427.67, 192,413.03 and 75,769.56

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Solution

The fourth proportional to 139,427.67, 192,413.03 and 75,769.56 is: 104,563.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,427.67 : 192,413.03 = 75,769.56 : x
  2. Step 2: Convert to fraction form
    139,427.67/192,413.03 = 75,769.56/x
  3. Step 3: Cross multiply
    139,427.67x = 192,413.03 × 75,769.56
  4. Step 4: Simplify right side
    139,427.67x = 14,579,050,964.07
  5. Step 5: Solve for x
    x = 14,579,050,964.07/139,427.67
  6. Step 6: Final answer
    x = 104,563.54

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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.