Home / 198,935.49-298,465.43-127,938.25

Finding the Fourth Proportional to 198,935.49, 298,465.43 and 127,938.25

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Solution

The fourth proportional to 198,935.49, 298,465.43 and 127,938.25 is: 191,947.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,935.49 : 298,465.43 = 127,938.25 : x
  2. Step 2: Convert to fraction form
    198,935.49/298,465.43 = 127,938.25/x
  3. Step 3: Cross multiply
    198,935.49x = 298,465.43 × 127,938.25
  4. Step 4: Simplify right side
    198,935.49x = 38,185,144,533.09
  5. Step 5: Solve for x
    x = 38,185,144,533.09/198,935.49
  6. Step 6: Final answer
    x = 191,947.37

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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.