Home / 259,442.13-389,131-69,917.32

Finding the Fourth Proportional to 259,442.13, 389,131 and 69,917.32

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Solution

The fourth proportional to 259,442.13, 389,131 and 69,917.32 is: 104,867.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,442.13 : 389,131 = 69,917.32 : x
  2. Step 2: Convert to fraction form
    259,442.13/389,131 = 69,917.32/x
  3. Step 3: Cross multiply
    259,442.13x = 389,131 × 69,917.32
  4. Step 4: Simplify right side
    259,442.13x = 27,206,996,648.92
  5. Step 5: Solve for x
    x = 27,206,996,648.92/259,442.13
  6. Step 6: Final answer
    x = 104,867.30

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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.