Home / 198,970.50-274,812.57-131,785.86

Finding the Fourth Proportional to 198,970.50, 274,812.57 and 131,785.86

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Solution

The fourth proportional to 198,970.50, 274,812.57 and 131,785.86 is: 182,019.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,970.50 : 274,812.57 = 131,785.86 : x
  2. Step 2: Convert to fraction form
    198,970.50/274,812.57 = 131,785.86/x
  3. Step 3: Cross multiply
    198,970.50x = 274,812.57 × 131,785.86
  4. Step 4: Simplify right side
    198,970.50x = 36,216,410,876.26
  5. Step 5: Solve for x
    x = 36,216,410,876.26/198,970.50
  6. Step 6: Final answer
    x = 182,019.00

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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.