Home / 143,657.59-198,261.26-79,995.37

Finding the Fourth Proportional to 143,657.59, 198,261.26 and 79,995.37

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Solution

The fourth proportional to 143,657.59, 198,261.26 and 79,995.37 is: 110,401.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,657.59 : 198,261.26 = 79,995.37 : x
  2. Step 2: Convert to fraction form
    143,657.59/198,261.26 = 79,995.37/x
  3. Step 3: Cross multiply
    143,657.59x = 198,261.26 × 79,995.37
  4. Step 4: Simplify right side
    143,657.59x = 15,859,982,850.37
  5. Step 5: Solve for x
    x = 15,859,982,850.37/143,657.59
  6. Step 6: Final answer
    x = 110,401.29

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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.