Home / 144,153.06-198,912.67-80,493.54

Finding the Fourth Proportional to 144,153.06, 198,912.67 and 80,493.54

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Solution

The fourth proportional to 144,153.06, 198,912.67 and 80,493.54 is: 111,070.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,153.06 : 198,912.67 = 80,493.54 : x
  2. Step 2: Convert to fraction form
    144,153.06/198,912.67 = 80,493.54/x
  3. Step 3: Cross multiply
    144,153.06x = 198,912.67 × 80,493.54
  4. Step 4: Simplify right side
    144,153.06x = 16,011,184,959.15
  5. Step 5: Solve for x
    x = 16,011,184,959.15/144,153.06
  6. Step 6: Final answer
    x = 111,070.73

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1.5x scale

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.