Home / 203,396.09-280,686.60-112,751.83

Finding the Fourth Proportional to 203,396.09, 280,686.60 and 112,751.83

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Solution

The fourth proportional to 203,396.09, 280,686.60 and 112,751.83 is: 155,597.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,396.09 : 280,686.60 = 112,751.83 : x
  2. Step 2: Convert to fraction form
    203,396.09/280,686.60 = 112,751.83/x
  3. Step 3: Cross multiply
    203,396.09x = 280,686.60 × 112,751.83
  4. Step 4: Simplify right side
    203,396.09x = 31,647,926,403.05
  5. Step 5: Solve for x
    x = 31,647,926,403.05/203,396.09
  6. Step 6: Final answer
    x = 155,597.52

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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.