Home / 148,693.05-205,190.92-80,708.59

Finding the Fourth Proportional to 148,693.05, 205,190.92 and 80,708.59

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Solution

The fourth proportional to 148,693.05, 205,190.92 and 80,708.59 is: 111,374.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,693.05 : 205,190.92 = 80,708.59 : x
  2. Step 2: Convert to fraction form
    148,693.05/205,190.92 = 80,708.59/x
  3. Step 3: Cross multiply
    148,693.05x = 205,190.92 × 80,708.59
  4. Step 4: Simplify right side
    148,693.05x = 16,560,669,037.18
  5. Step 5: Solve for x
    x = 16,560,669,037.18/148,693.05
  6. Step 6: Final answer
    x = 111,374.87

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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.