Home / 120,744.90-181,099.94-40,768.38

Finding the Fourth Proportional to 120,744.90, 181,099.94 and 40,768.38

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Solution

The fourth proportional to 120,744.90, 181,099.94 and 40,768.38 is: 61,146.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,744.90 : 181,099.94 = 40,768.38 : x
  2. Step 2: Convert to fraction form
    120,744.90/181,099.94 = 40,768.38/x
  3. Step 3: Cross multiply
    120,744.90x = 181,099.94 × 40,768.38
  4. Step 4: Simplify right side
    120,744.90x = 7,383,150,968.06
  5. Step 5: Solve for x
    x = 7,383,150,968.06/120,744.90
  6. Step 6: Final answer
    x = 61,146.69

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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.