Home / 143,257.20-214,979.02-54,511.44

Finding the Fourth Proportional to 143,257.20, 214,979.02 and 54,511.44

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Solution

The fourth proportional to 143,257.20, 214,979.02 and 54,511.44 is: 81,802.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,257.20 : 214,979.02 = 54,511.44 : x
  2. Step 2: Convert to fraction form
    143,257.20/214,979.02 = 54,511.44/x
  3. Step 3: Cross multiply
    143,257.20x = 214,979.02 × 54,511.44
  4. Step 4: Simplify right side
    143,257.20x = 11,718,815,949.99
  5. Step 5: Solve for x
    x = 11,718,815,949.99/143,257.20
  6. Step 6: Final answer
    x = 81,802.63

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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.