Home / 217,021.14-325,269.27-111,782.70

Finding the Fourth Proportional to 217,021.14, 325,269.27 and 111,782.70

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Solution

The fourth proportional to 217,021.14, 325,269.27 and 111,782.70 is: 167,538.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,021.14 : 325,269.27 = 111,782.70 : x
  2. Step 2: Convert to fraction form
    217,021.14/325,269.27 = 111,782.70/x
  3. Step 3: Cross multiply
    217,021.14x = 325,269.27 × 111,782.70
  4. Step 4: Simplify right side
    217,021.14x = 36,359,477,227.63
  5. Step 5: Solve for x
    x = 36,359,477,227.63/217,021.14
  6. Step 6: Final answer
    x = 167,538.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.