Home / 143,605.44-198,165.96-79,941.60

Finding the Fourth Proportional to 143,605.44, 198,165.96 and 79,941.60

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Solution

The fourth proportional to 143,605.44, 198,165.96 and 79,941.60 is: 110,314.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,605.44 : 198,165.96 = 79,941.60 : x
  2. Step 2: Convert to fraction form
    143,605.44/198,165.96 = 79,941.60/x
  3. Step 3: Cross multiply
    143,605.44x = 198,165.96 × 79,941.60
  4. Step 4: Simplify right side
    143,605.44x = 15,841,703,907.94
  5. Step 5: Solve for x
    x = 15,841,703,907.94/143,605.44
  6. Step 6: Final answer
    x = 110,314.09

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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.