Home / 123,087.18-184,621.21-75,708.56

Finding the Fourth Proportional to 123,087.18, 184,621.21 and 75,708.56

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Solution

The fourth proportional to 123,087.18, 184,621.21 and 75,708.56 is: 113,556.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,087.18 : 184,621.21 = 75,708.56 : x
  2. Step 2: Convert to fraction form
    123,087.18/184,621.21 = 75,708.56/x
  3. Step 3: Cross multiply
    123,087.18x = 184,621.21 × 75,708.56
  4. Step 4: Simplify right side
    123,087.18x = 13,977,405,954.56
  5. Step 5: Solve for x
    x = 13,977,405,954.56/123,087.18
  6. Step 6: Final answer
    x = 113,556.96

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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.