Home / 268,986.24-403,544.16-81,986.24

Finding the Fourth Proportional to 268,986.24, 403,544.16 and 81,986.24

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Solution

The fourth proportional to 268,986.24, 403,544.16 and 81,986.24 is: 122,999.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,986.24 : 403,544.16 = 81,986.24 : x
  2. Step 2: Convert to fraction form
    268,986.24/403,544.16 = 81,986.24/x
  3. Step 3: Cross multiply
    268,986.24x = 403,544.16 × 81,986.24
  4. Step 4: Simplify right side
    268,986.24x = 33,085,068,352.36
  5. Step 5: Solve for x
    x = 33,085,068,352.36/268,986.24
  6. Step 6: Final answer
    x = 122,999.11

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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.