Home / 143,865.88-198,552.82-82,631.25

Finding the Fourth Proportional to 143,865.88, 198,552.82 and 82,631.25

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Solution

The fourth proportional to 143,865.88, 198,552.82 and 82,631.25 is: 114,041.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,865.88 : 198,552.82 = 82,631.25 : x
  2. Step 2: Convert to fraction form
    143,865.88/198,552.82 = 82,631.25/x
  3. Step 3: Cross multiply
    143,865.88x = 198,552.82 × 82,631.25
  4. Step 4: Simplify right side
    143,865.88x = 16,406,667,707.63
  5. Step 5: Solve for x
    x = 16,406,667,707.63/143,865.88
  6. Step 6: Final answer
    x = 114,041.41

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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.