Home / 268,878.12-403,383.60-111,151.68

Finding the Fourth Proportional to 268,878.12, 403,383.60 and 111,151.68

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Solution

The fourth proportional to 268,878.12, 403,383.60 and 111,151.68 is: 166,754.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,878.12 : 403,383.60 = 111,151.68 : x
  2. Step 2: Convert to fraction form
    268,878.12/403,383.60 = 111,151.68/x
  3. Step 3: Cross multiply
    268,878.12x = 403,383.60 × 111,151.68
  4. Step 4: Simplify right side
    268,878.12x = 44,836,764,824.45
  5. Step 5: Solve for x
    x = 44,836,764,824.45/268,878.12
  6. Step 6: Final answer
    x = 166,754.98

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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.