Home / 143,999.93-198,794.61-105,194.18

Finding the Fourth Proportional to 143,999.93, 198,794.61 and 105,194.18

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Solution

The fourth proportional to 143,999.93, 198,794.61 and 105,194.18 is: 145,222.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,999.93 : 198,794.61 = 105,194.18 : x
  2. Step 2: Convert to fraction form
    143,999.93/198,794.61 = 105,194.18/x
  3. Step 3: Cross multiply
    143,999.93x = 198,794.61 × 105,194.18
  4. Step 4: Simplify right side
    143,999.93x = 20,912,035,987.37
  5. Step 5: Solve for x
    x = 20,912,035,987.37/143,999.93
  6. Step 6: Final answer
    x = 145,222.54

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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.