Home / 143,083.17-197,408.75-82,645.29

Finding the Fourth Proportional to 143,083.17, 197,408.75 and 82,645.29

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Solution

The fourth proportional to 143,083.17, 197,408.75 and 82,645.29 is: 114,023.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,083.17 : 197,408.75 = 82,645.29 : x
  2. Step 2: Convert to fraction form
    143,083.17/197,408.75 = 82,645.29/x
  3. Step 3: Cross multiply
    143,083.17x = 197,408.75 × 82,645.29
  4. Step 4: Simplify right side
    143,083.17x = 16,314,902,979.06
  5. Step 5: Solve for x
    x = 16,314,902,979.06/143,083.17
  6. Step 6: Final answer
    x = 114,023.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.