Home / 198,682.23-274,240.59-113,855.79

Finding the Fourth Proportional to 198,682.23, 274,240.59 and 113,855.79

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Solution

The fourth proportional to 198,682.23, 274,240.59 and 113,855.79 is: 157,154.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,682.23 : 274,240.59 = 113,855.79 : x
  2. Step 2: Convert to fraction form
    198,682.23/274,240.59 = 113,855.79/x
  3. Step 3: Cross multiply
    198,682.23x = 274,240.59 × 113,855.79
  4. Step 4: Simplify right side
    198,682.23x = 31,223,879,024.52
  5. Step 5: Solve for x
    x = 31,223,879,024.52/198,682.23
  6. Step 6: Final answer
    x = 157,154.86

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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.