Home / 198,572.95-274,033.44-107,928.89

Finding the Fourth Proportional to 198,572.95, 274,033.44 and 107,928.89

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Solution

The fourth proportional to 198,572.95, 274,033.44 and 107,928.89 is: 148,943.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,572.95 : 274,033.44 = 107,928.89 : x
  2. Step 2: Convert to fraction form
    198,572.95/274,033.44 = 107,928.89/x
  3. Step 3: Cross multiply
    198,572.95x = 274,033.44 × 107,928.89
  4. Step 4: Simplify right side
    198,572.95x = 29,576,123,631.91
  5. Step 5: Solve for x
    x = 29,576,123,631.91/198,572.95
  6. Step 6: Final answer
    x = 148,943.37

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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.