Home / 198,724.09-274,158.34-112,664.92

Finding the Fourth Proportional to 198,724.09, 274,158.34 and 112,664.92

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Solution

The fourth proportional to 198,724.09, 274,158.34 and 112,664.92 is: 155,431.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,724.09 : 274,158.34 = 112,664.92 : x
  2. Step 2: Convert to fraction form
    198,724.09/274,158.34 = 112,664.92/x
  3. Step 3: Cross multiply
    198,724.09x = 274,158.34 × 112,664.92
  4. Step 4: Simplify right side
    198,724.09x = 30,888,027,443.43
  5. Step 5: Solve for x
    x = 30,888,027,443.43/198,724.09
  6. Step 6: Final answer
    x = 155,431.72

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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.