Home / 199,128.18-274,793.68-108,485.24

Finding the Fourth Proportional to 199,128.18, 274,793.68 and 108,485.24

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Solution

The fourth proportional to 199,128.18, 274,793.68 and 108,485.24 is: 149,707.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,128.18 : 274,793.68 = 108,485.24 : x
  2. Step 2: Convert to fraction form
    199,128.18/274,793.68 = 108,485.24/x
  3. Step 3: Cross multiply
    199,128.18x = 274,793.68 × 108,485.24
  4. Step 4: Simplify right side
    199,128.18x = 29,811,058,325.28
  5. Step 5: Solve for x
    x = 29,811,058,325.28/199,128.18
  6. Step 6: Final answer
    x = 149,707.88

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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.