Home / 280,773.20-421,181.88-93,785.36

Finding the Fourth Proportional to 280,773.20, 421,181.88 and 93,785.36

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Solution

The fourth proportional to 280,773.20, 421,181.88 and 93,785.36 is: 140,685.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,773.20 : 421,181.88 = 93,785.36 : x
  2. Step 2: Convert to fraction form
    280,773.20/421,181.88 = 93,785.36/x
  3. Step 3: Cross multiply
    280,773.20x = 421,181.88 × 93,785.36
  4. Step 4: Simplify right side
    280,773.20x = 39,500,694,241.28
  5. Step 5: Solve for x
    x = 39,500,694,241.28/280,773.20
  6. Step 6: Final answer
    x = 140,685.42

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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.