Home / 268,439.10-402,661.84-68,754.15

Finding the Fourth Proportional to 268,439.10, 402,661.84 and 68,754.15

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Solution

The fourth proportional to 268,439.10, 402,661.84 and 68,754.15 is: 103,132.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,439.10 : 402,661.84 = 68,754.15 : x
  2. Step 2: Convert to fraction form
    268,439.10/402,661.84 = 68,754.15/x
  3. Step 3: Cross multiply
    268,439.10x = 402,661.84 × 68,754.15
  4. Step 4: Simplify right side
    268,439.10x = 27,684,672,546.64
  5. Step 5: Solve for x
    x = 27,684,672,546.64/268,439.10
  6. Step 6: Final answer
    x = 103,132.04

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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.