Home / 198,941.41-298,356.54-78,944.38

Finding the Fourth Proportional to 198,941.41, 298,356.54 and 78,944.38

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Solution

The fourth proportional to 198,941.41, 298,356.54 and 78,944.38 is: 118,394.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,941.41 : 298,356.54 = 78,944.38 : x
  2. Step 2: Convert to fraction form
    198,941.41/298,356.54 = 78,944.38/x
  3. Step 3: Cross multiply
    198,941.41x = 298,356.54 × 78,944.38
  4. Step 4: Simplify right side
    198,941.41x = 23,553,572,069.25
  5. Step 5: Solve for x
    x = 23,553,572,069.25/198,941.41
  6. Step 6: Final answer
    x = 118,394.52

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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.