Home / 119,394.45-164,749.34-80,716.39

Finding the Fourth Proportional to 119,394.45, 164,749.34 and 80,716.39

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Solution

The fourth proportional to 119,394.45, 164,749.34 and 80,716.39 is: 111,378.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,394.45 : 164,749.34 = 80,716.39 : x
  2. Step 2: Convert to fraction form
    119,394.45/164,749.34 = 80,716.39/x
  3. Step 3: Cross multiply
    119,394.45x = 164,749.34 × 80,716.39
  4. Step 4: Simplify right side
    119,394.45x = 13,297,970,954.14
  5. Step 5: Solve for x
    x = 13,297,970,954.14/119,394.45
  6. Step 6: Final answer
    x = 111,378.46

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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.