Home / 85,163.14-126,739.45-82,325.16

Finding the Fourth Proportional to 85,163.14, 126,739.45 and 82,325.16

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Solution

The fourth proportional to 85,163.14, 126,739.45 and 82,325.16 is: 122,515.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,163.14 : 126,739.45 = 82,325.16 : x
  2. Step 2: Convert to fraction form
    85,163.14/126,739.45 = 82,325.16/x
  3. Step 3: Cross multiply
    85,163.14x = 126,739.45 × 82,325.16
  4. Step 4: Simplify right side
    85,163.14x = 10,433,845,087.94
  5. Step 5: Solve for x
    x = 10,433,845,087.94/85,163.14
  6. Step 6: Final answer
    x = 122,515.98

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.