Home / 268,450.07-402,665.84-68,772.41

Finding the Fourth Proportional to 268,450.07, 402,665.84 and 68,772.41

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Solution

The fourth proportional to 268,450.07, 402,665.84 and 68,772.41 is: 103,156.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,450.07 : 402,665.84 = 68,772.41 : x
  2. Step 2: Convert to fraction form
    268,450.07/402,665.84 = 68,772.41/x
  3. Step 3: Cross multiply
    268,450.07x = 402,665.84 × 68,772.41
  4. Step 4: Simplify right side
    268,450.07x = 27,692,301,162.17
  5. Step 5: Solve for x
    x = 27,692,301,162.17/268,450.07
  6. Step 6: Final answer
    x = 103,156.25

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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.