Home / 120,091.50-179,998.56-45,163.82

Finding the Fourth Proportional to 120,091.50, 179,998.56 and 45,163.82

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Solution

The fourth proportional to 120,091.50, 179,998.56 and 45,163.82 is: 67,693.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,091.50 : 179,998.56 = 45,163.82 : x
  2. Step 2: Convert to fraction form
    120,091.50/179,998.56 = 45,163.82/x
  3. Step 3: Cross multiply
    120,091.50x = 179,998.56 × 45,163.82
  4. Step 4: Simplify right side
    120,091.50x = 8,129,422,564.10
  5. Step 5: Solve for x
    x = 8,129,422,564.10/120,091.50
  6. Step 6: Final answer
    x = 67,693.57

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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.