Home / 123,415.21-185,129.97-34,675.61

Finding the Fourth Proportional to 123,415.21, 185,129.97 and 34,675.61

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Solution

The fourth proportional to 123,415.21, 185,129.97 and 34,675.61 is: 52,015.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,415.21 : 185,129.97 = 34,675.61 : x
  2. Step 2: Convert to fraction form
    123,415.21/185,129.97 = 34,675.61/x
  3. Step 3: Cross multiply
    123,415.21x = 185,129.97 × 34,675.61
  4. Step 4: Simplify right side
    123,415.21x = 6,419,493,800.07
  5. Step 5: Solve for x
    x = 6,419,493,800.07/123,415.21
  6. Step 6: Final answer
    x = 52,015.42

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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.