Home / 198,916.37-274,510.43-108,278.25

Finding the Fourth Proportional to 198,916.37, 274,510.43 and 108,278.25

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Solution

The fourth proportional to 198,916.37, 274,510.43 and 108,278.25 is: 149,427.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,916.37 : 274,510.43 = 108,278.25 : x
  2. Step 2: Convert to fraction form
    198,916.37/274,510.43 = 108,278.25/x
  3. Step 3: Cross multiply
    198,916.37x = 274,510.43 × 108,278.25
  4. Step 4: Simplify right side
    198,916.37x = 29,723,509,237.84
  5. Step 5: Solve for x
    x = 29,723,509,237.84/198,916.37
  6. Step 6: Final answer
    x = 149,427.16

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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.