Home / 143,665.68-198,245.94-83,217

Finding the Fourth Proportional to 143,665.68, 198,245.94 and 83,217

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Solution

The fourth proportional to 143,665.68, 198,245.94 and 83,217 is: 114,832.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,665.68 : 198,245.94 = 83,217 : x
  2. Step 2: Convert to fraction form
    143,665.68/198,245.94 = 83,217/x
  3. Step 3: Cross multiply
    143,665.68x = 198,245.94 × 83,217
  4. Step 4: Simplify right side
    143,665.68x = 16,497,432,388.98
  5. Step 5: Solve for x
    x = 16,497,432,388.98/143,665.68
  6. Step 6: Final answer
    x = 114,832.10

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1.5x scale

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.