Home / 143,563.20-198,093.60-79,899.36

Finding the Fourth Proportional to 143,563.20, 198,093.60 and 79,899.36

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Solution

The fourth proportional to 143,563.20, 198,093.60 and 79,899.36 is: 110,247.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,563.20 : 198,093.60 = 79,899.36 : x
  2. Step 2: Convert to fraction form
    143,563.20/198,093.60 = 79,899.36/x
  3. Step 3: Cross multiply
    143,563.20x = 198,093.60 × 79,899.36
  4. Step 4: Simplify right side
    143,563.20x = 15,827,551,860.10
  5. Step 5: Solve for x
    x = 15,827,551,860.10/143,563.20
  6. Step 6: Final answer
    x = 110,247.97

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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.