Home / 135,829.98-187,441.83-75,399.03

Finding the Fourth Proportional to 135,829.98, 187,441.83 and 75,399.03

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Solution

The fourth proportional to 135,829.98, 187,441.83 and 75,399.03 is: 104,048.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,829.98 : 187,441.83 = 75,399.03 : x
  2. Step 2: Convert to fraction form
    135,829.98/187,441.83 = 75,399.03/x
  3. Step 3: Cross multiply
    135,829.98x = 187,441.83 × 75,399.03
  4. Step 4: Simplify right side
    135,829.98x = 14,132,932,163.42
  5. Step 5: Solve for x
    x = 14,132,932,163.42/135,829.98
  6. Step 6: Final answer
    x = 104,048.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.