Home / 203,467.42-280,788.41-112,827.20

Finding the Fourth Proportional to 203,467.42, 280,788.41 and 112,827.20

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Solution

The fourth proportional to 203,467.42, 280,788.41 and 112,827.20 is: 155,703.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,467.42 : 280,788.41 = 112,827.20 : x
  2. Step 2: Convert to fraction form
    203,467.42/280,788.41 = 112,827.20/x
  3. Step 3: Cross multiply
    203,467.42x = 280,788.41 × 112,827.20
  4. Step 4: Simplify right side
    203,467.42x = 31,680,571,076.79
  5. Step 5: Solve for x
    x = 31,680,571,076.79/203,467.42
  6. Step 6: Final answer
    x = 155,703.41

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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.