Home / 203,021.37-280,170.02-112,383.59

Finding the Fourth Proportional to 203,021.37, 280,170.02 and 112,383.59

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Solution

The fourth proportional to 203,021.37, 280,170.02 and 112,383.59 is: 155,089.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,021.37 : 280,170.02 = 112,383.59 : x
  2. Step 2: Convert to fraction form
    203,021.37/280,170.02 = 112,383.59/x
  3. Step 3: Cross multiply
    203,021.37x = 280,170.02 × 112,383.59
  4. Step 4: Simplify right side
    203,021.37x = 31,486,511,538.08
  5. Step 5: Solve for x
    x = 31,486,511,538.08/203,021.37
  6. Step 6: Final answer
    x = 155,089.64

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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.