Home / 116,139.05-174,152.19-68,120.73

Finding the Fourth Proportional to 116,139.05, 174,152.19 and 68,120.73

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Solution

The fourth proportional to 116,139.05, 174,152.19 and 68,120.73 is: 102,148.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,139.05 : 174,152.19 = 68,120.73 : x
  2. Step 2: Convert to fraction form
    116,139.05/174,152.19 = 68,120.73/x
  3. Step 3: Cross multiply
    116,139.05x = 174,152.19 × 68,120.73
  4. Step 4: Simplify right side
    116,139.05x = 11,863,374,313.90
  5. Step 5: Solve for x
    x = 11,863,374,313.90/116,139.05
  6. Step 6: Final answer
    x = 102,148.02

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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.