Home / 203,059.26-280,212.70-112,408.86

Finding the Fourth Proportional to 203,059.26, 280,212.70 and 112,408.86

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Solution

The fourth proportional to 203,059.26, 280,212.70 and 112,408.86 is: 155,119.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,059.26 : 280,212.70 = 112,408.86 : x
  2. Step 2: Convert to fraction form
    203,059.26/280,212.70 = 112,408.86/x
  3. Step 3: Cross multiply
    203,059.26x = 280,212.70 × 112,408.86
  4. Step 4: Simplify right side
    203,059.26x = 31,498,390,164.52
  5. Step 5: Solve for x
    x = 31,498,390,164.52/203,059.26
  6. Step 6: Final answer
    x = 155,119.20

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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.