Home / 203,103.51-280,298.58-112,467.90

Finding the Fourth Proportional to 203,103.51, 280,298.58 and 112,467.90

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Solution

The fourth proportional to 203,103.51, 280,298.58 and 112,467.90 is: 155,214.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,103.51 : 280,298.58 = 112,467.90 : x
  2. Step 2: Convert to fraction form
    203,103.51/280,298.58 = 112,467.90/x
  3. Step 3: Cross multiply
    203,103.51x = 280,298.58 × 112,467.90
  4. Step 4: Simplify right side
    203,103.51x = 31,524,592,665.58
  5. Step 5: Solve for x
    x = 31,524,592,665.58/203,103.51
  6. Step 6: Final answer
    x = 155,214.42

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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.