Home / 198,825.24-298,150.38-105,309.12

Finding the Fourth Proportional to 198,825.24, 298,150.38 and 105,309.12

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Solution

The fourth proportional to 198,825.24, 298,150.38 and 105,309.12 is: 157,917.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,825.24 : 298,150.38 = 105,309.12 : x
  2. Step 2: Convert to fraction form
    198,825.24/298,150.38 = 105,309.12/x
  3. Step 3: Cross multiply
    198,825.24x = 298,150.38 × 105,309.12
  4. Step 4: Simplify right side
    198,825.24x = 31,397,954,145.47
  5. Step 5: Solve for x
    x = 31,397,954,145.47/198,825.24
  6. Step 6: Final answer
    x = 157,917.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.