Home / 198,431.34-273,821.09-112,365.60

Finding the Fourth Proportional to 198,431.34, 273,821.09 and 112,365.60

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Solution

The fourth proportional to 198,431.34, 273,821.09 and 112,365.60 is: 155,056.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,431.34 : 273,821.09 = 112,365.60 : x
  2. Step 2: Convert to fraction form
    198,431.34/273,821.09 = 112,365.60/x
  3. Step 3: Cross multiply
    198,431.34x = 273,821.09 × 112,365.60
  4. Step 4: Simplify right side
    198,431.34x = 30,768,070,508.68
  5. Step 5: Solve for x
    x = 30,768,070,508.68/198,431.34
  6. Step 6: Final answer
    x = 155,056.51

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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.