Home / 116,138.05-174,150.69-68,119.73

Finding the Fourth Proportional to 116,138.05, 174,150.69 and 68,119.73

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Solution

The fourth proportional to 116,138.05, 174,150.69 and 68,119.73 is: 102,146.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,138.05 : 174,150.69 = 68,119.73 : x
  2. Step 2: Convert to fraction form
    116,138.05/174,150.69 = 68,119.73/x
  3. Step 3: Cross multiply
    116,138.05x = 174,150.69 × 68,119.73
  4. Step 4: Simplify right side
    116,138.05x = 11,863,097,982.11
  5. Step 5: Solve for x
    x = 11,863,097,982.11/116,138.05
  6. Step 6: Final answer
    x = 102,146.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.