Home / 143,887.02-198,564.21-80,223.54

Finding the Fourth Proportional to 143,887.02, 198,564.21 and 80,223.54

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Solution

The fourth proportional to 143,887.02, 198,564.21 and 80,223.54 is: 110,708.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,887.02 : 198,564.21 = 80,223.54 : x
  2. Step 2: Convert to fraction form
    143,887.02/198,564.21 = 80,223.54/x
  3. Step 3: Cross multiply
    143,887.02x = 198,564.21 × 80,223.54
  4. Step 4: Simplify right side
    143,887.02x = 15,929,523,843.50
  5. Step 5: Solve for x
    x = 15,929,523,843.50/143,887.02
  6. Step 6: Final answer
    x = 110,708.55

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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.