Home / 178,797.90-268,196.61-45,678.21

Finding the Fourth Proportional to 178,797.90, 268,196.61 and 45,678.21

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Solution

The fourth proportional to 178,797.90, 268,196.61 and 45,678.21 is: 68,517.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,797.90 : 268,196.61 = 45,678.21 : x
  2. Step 2: Convert to fraction form
    178,797.90/268,196.61 = 45,678.21/x
  3. Step 3: Cross multiply
    178,797.90x = 268,196.61 × 45,678.21
  4. Step 4: Simplify right side
    178,797.90x = 12,250,741,072.87
  5. Step 5: Solve for x
    x = 12,250,741,072.87/178,797.90
  6. Step 6: Final answer
    x = 68,517.25

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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.