Home / 268,455.09-402,673.32-68,777.13

Finding the Fourth Proportional to 268,455.09, 402,673.32 and 68,777.13

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Solution

The fourth proportional to 268,455.09, 402,673.32 and 68,777.13 is: 103,163.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,455.09 : 402,673.32 = 68,777.13 : x
  2. Step 2: Convert to fraction form
    268,455.09/402,673.32 = 68,777.13/x
  3. Step 3: Cross multiply
    268,455.09x = 402,673.32 × 68,777.13
  4. Step 4: Simplify right side
    268,455.09x = 27,694,715,277.17
  5. Step 5: Solve for x
    x = 27,694,715,277.17/268,455.09
  6. Step 6: Final answer
    x = 103,163.31

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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.