Home / 148,976.56-205,591.70-80,998.11

Finding the Fourth Proportional to 148,976.56, 205,591.70 and 80,998.11

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Solution

The fourth proportional to 148,976.56, 205,591.70 and 80,998.11 is: 111,779.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,976.56 : 205,591.70 = 80,998.11 : x
  2. Step 2: Convert to fraction form
    148,976.56/205,591.70 = 80,998.11/x
  3. Step 3: Cross multiply
    148,976.56x = 205,591.70 × 80,998.11
  4. Step 4: Simplify right side
    148,976.56x = 16,652,539,131.69
  5. Step 5: Solve for x
    x = 16,652,539,131.69/148,976.56
  6. Step 6: Final answer
    x = 111,779.59

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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.