Home / 114,986.44-158,676-81,008.56

Finding the Fourth Proportional to 114,986.44, 158,676 and 81,008.56

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Solution

The fourth proportional to 114,986.44, 158,676 and 81,008.56 is: 111,788.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,986.44 : 158,676 = 81,008.56 : x
  2. Step 2: Convert to fraction form
    114,986.44/158,676 = 81,008.56/x
  3. Step 3: Cross multiply
    114,986.44x = 158,676 × 81,008.56
  4. Step 4: Simplify right side
    114,986.44x = 12,854,114,266.56
  5. Step 5: Solve for x
    x = 12,854,114,266.56/114,986.44
  6. Step 6: Final answer
    x = 111,788.09

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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.