Home / 135,576.26-187,106.43-75,165.86

Finding the Fourth Proportional to 135,576.26, 187,106.43 and 75,165.86

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Solution

The fourth proportional to 135,576.26, 187,106.43 and 75,165.86 is: 103,735.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,576.26 : 187,106.43 = 75,165.86 : x
  2. Step 2: Convert to fraction form
    135,576.26/187,106.43 = 75,165.86/x
  3. Step 3: Cross multiply
    135,576.26x = 187,106.43 × 75,165.86
  4. Step 4: Simplify right side
    135,576.26x = 14,064,014,786.95
  5. Step 5: Solve for x
    x = 14,064,014,786.95/135,576.26
  6. Step 6: Final answer
    x = 103,735.09

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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.