Home / 197,309.48-272,313.72-111,286.12

Finding the Fourth Proportional to 197,309.48, 272,313.72 and 111,286.12

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Solution

The fourth proportional to 197,309.48, 272,313.72 and 111,286.12 is: 153,589.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,309.48 : 272,313.72 = 111,286.12 : x
  2. Step 2: Convert to fraction form
    197,309.48/272,313.72 = 111,286.12/x
  3. Step 3: Cross multiply
    197,309.48x = 272,313.72 × 111,286.12
  4. Step 4: Simplify right side
    197,309.48x = 30,304,737,321.57
  5. Step 5: Solve for x
    x = 30,304,737,321.57/197,309.48
  6. Step 6: Final answer
    x = 153,589.87

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1.5x scale

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.