Home / 203,405.20-280,673.21-112,760.33

Finding the Fourth Proportional to 203,405.20, 280,673.21 and 112,760.33

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Solution

The fourth proportional to 203,405.20, 280,673.21 and 112,760.33 is: 155,594.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,405.20 : 280,673.21 = 112,760.33 : x
  2. Step 2: Convert to fraction form
    203,405.20/280,673.21 = 112,760.33/x
  3. Step 3: Cross multiply
    203,405.20x = 280,673.21 × 112,760.33
  4. Step 4: Simplify right side
    203,405.20x = 31,648,802,660.29
  5. Step 5: Solve for x
    x = 31,648,802,660.29/203,405.20
  6. Step 6: Final answer
    x = 155,594.86

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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.