Home / 143,584.88-198,147.18-79,921.32

Finding the Fourth Proportional to 143,584.88, 198,147.18 and 79,921.32

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Solution

The fourth proportional to 143,584.88, 198,147.18 and 79,921.32 is: 110,291.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,584.88 : 198,147.18 = 79,921.32 : x
  2. Step 2: Convert to fraction form
    143,584.88/198,147.18 = 79,921.32/x
  3. Step 3: Cross multiply
    143,584.88x = 198,147.18 × 79,921.32
  4. Step 4: Simplify right side
    143,584.88x = 15,836,184,179.88
  5. Step 5: Solve for x
    x = 15,836,184,179.88/143,584.88
  6. Step 6: Final answer
    x = 110,291.45

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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.