Home / 199,007.85-274,163.61-138,474.54

Finding the Fourth Proportional to 199,007.85, 274,163.61 and 138,474.54

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Solution

The fourth proportional to 199,007.85, 274,163.61 and 138,474.54 is: 190,769.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,007.85 : 274,163.61 = 138,474.54 : x
  2. Step 2: Convert to fraction form
    199,007.85/274,163.61 = 138,474.54/x
  3. Step 3: Cross multiply
    199,007.85x = 274,163.61 × 138,474.54
  4. Step 4: Simplify right side
    199,007.85x = 37,964,679,779.49
  5. Step 5: Solve for x
    x = 37,964,679,779.49/199,007.85
  6. Step 6: Final answer
    x = 190,769.76

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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.