Home / 259,493.01-389,237.18-82,000.05

Finding the Fourth Proportional to 259,493.01, 389,237.18 and 82,000.05

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Solution

The fourth proportional to 259,493.01, 389,237.18 and 82,000.05 is: 122,999.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,493.01 : 389,237.18 = 82,000.05 : x
  2. Step 2: Convert to fraction form
    259,493.01/389,237.18 = 82,000.05/x
  3. Step 3: Cross multiply
    259,493.01x = 389,237.18 × 82,000.05
  4. Step 4: Simplify right side
    259,493.01x = 31,917,467,811.86
  5. Step 5: Solve for x
    x = 31,917,467,811.86/259,493.01
  6. Step 6: Final answer
    x = 122,999.34

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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.