Home / 198,360.36-273,768.21-112,323.78

Finding the Fourth Proportional to 198,360.36, 273,768.21 and 112,323.78

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Solution

The fourth proportional to 198,360.36, 273,768.21 and 112,323.78 is: 155,024.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,360.36 : 273,768.21 = 112,323.78 : x
  2. Step 2: Convert to fraction form
    198,360.36/273,768.21 = 112,323.78/x
  3. Step 3: Cross multiply
    198,360.36x = 273,768.21 × 112,323.78
  4. Step 4: Simplify right side
    198,360.36x = 30,750,680,191.03
  5. Step 5: Solve for x
    x = 30,750,680,191.03/198,360.36
  6. Step 6: Final answer
    x = 155,024.32

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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.