Home / 116,140.05-174,153.69-68,121.73

Finding the Fourth Proportional to 116,140.05, 174,153.69 and 68,121.73

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Solution

The fourth proportional to 116,140.05, 174,153.69 and 68,121.73 is: 102,149.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,140.05 : 174,153.69 = 68,121.73 : x
  2. Step 2: Convert to fraction form
    116,140.05/174,153.69 = 68,121.73/x
  3. Step 3: Cross multiply
    116,140.05x = 174,153.69 × 68,121.73
  4. Step 4: Simplify right side
    116,140.05x = 11,863,650,648.68
  5. Step 5: Solve for x
    x = 11,863,650,648.68/116,140.05
  6. Step 6: Final answer
    x = 102,149.52

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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.