Home / 143,205.10-197,578.56-82,753.72

Finding the Fourth Proportional to 143,205.10, 197,578.56 and 82,753.72

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Solution

The fourth proportional to 143,205.10, 197,578.56 and 82,753.72 is: 114,174.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,205.10 : 197,578.56 = 82,753.72 : x
  2. Step 2: Convert to fraction form
    143,205.10/197,578.56 = 82,753.72/x
  3. Step 3: Cross multiply
    143,205.10x = 197,578.56 × 82,753.72
  4. Step 4: Simplify right side
    143,205.10x = 16,350,360,832.24
  5. Step 5: Solve for x
    x = 16,350,360,832.24/143,205.10
  6. Step 6: Final answer
    x = 114,174.43

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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.