Home / 205,145.73-307,775.16-72,008.46

Finding the Fourth Proportional to 205,145.73, 307,775.16 and 72,008.46

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Solution

The fourth proportional to 205,145.73, 307,775.16 and 72,008.46 is: 108,032.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,145.73 : 307,775.16 = 72,008.46 : x
  2. Step 2: Convert to fraction form
    205,145.73/307,775.16 = 72,008.46/x
  3. Step 3: Cross multiply
    205,145.73x = 307,775.16 × 72,008.46
  4. Step 4: Simplify right side
    205,145.73x = 22,162,415,297.85
  5. Step 5: Solve for x
    x = 22,162,415,297.85/205,145.73
  6. Step 6: Final answer
    x = 108,032.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.