Home / 143,828.24-198,483.89-80,170.07

Finding the Fourth Proportional to 143,828.24, 198,483.89 and 80,170.07

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Solution

The fourth proportional to 143,828.24, 198,483.89 and 80,170.07 is: 110,635.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,828.24 : 198,483.89 = 80,170.07 : x
  2. Step 2: Convert to fraction form
    143,828.24/198,483.89 = 80,170.07/x
  3. Step 3: Cross multiply
    143,828.24x = 198,483.89 × 80,170.07
  4. Step 4: Simplify right side
    143,828.24x = 15,912,467,355.17
  5. Step 5: Solve for x
    x = 15,912,467,355.17/143,828.24
  6. Step 6: Final answer
    x = 110,635.21

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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.