Home / 143,257.19-214,979.03-54,511.43

Finding the Fourth Proportional to 143,257.19, 214,979.03 and 54,511.43

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Solution

The fourth proportional to 143,257.19, 214,979.03 and 54,511.43 is: 81,802.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,257.19 : 214,979.03 = 54,511.43 : x
  2. Step 2: Convert to fraction form
    143,257.19/214,979.03 = 54,511.43/x
  3. Step 3: Cross multiply
    143,257.19x = 214,979.03 × 54,511.43
  4. Step 4: Simplify right side
    143,257.19x = 11,718,814,345.31
  5. Step 5: Solve for x
    x = 11,718,814,345.31/143,257.19
  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.