Home / 143,887.52-198,564.90-80,224.04

Finding the Fourth Proportional to 143,887.52, 198,564.90 and 80,224.04

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Solution

The fourth proportional to 143,887.52, 198,564.90 and 80,224.04 is: 110,709.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,887.52 : 198,564.90 = 80,224.04 : x
  2. Step 2: Convert to fraction form
    143,887.52/198,564.90 = 80,224.04/x
  3. Step 3: Cross multiply
    143,887.52x = 198,564.90 × 80,224.04
  4. Step 4: Simplify right side
    143,887.52x = 15,929,678,480.20
  5. Step 5: Solve for x
    x = 15,929,678,480.20/143,887.52
  6. Step 6: Final answer
    x = 110,709.24

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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.