Home / 135,600.49-203,171.10-82,130.91

Finding the Fourth Proportional to 135,600.49, 203,171.10 and 82,130.91

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Solution

The fourth proportional to 135,600.49, 203,171.10 and 82,130.91 is: 123,057.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,600.49 : 203,171.10 = 82,130.91 : x
  2. Step 2: Convert to fraction form
    135,600.49/203,171.10 = 82,130.91/x
  3. Step 3: Cross multiply
    135,600.49x = 203,171.10 × 82,130.91
  4. Step 4: Simplify right side
    135,600.49x = 16,686,626,751.20
  5. Step 5: Solve for x
    x = 16,686,626,751.20/135,600.49
  6. Step 6: Final answer
    x = 123,057.27

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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.