Home / 135,144.76-202,498.26-82,394.68

Finding the Fourth Proportional to 135,144.76, 202,498.26 and 82,394.68

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Solution

The fourth proportional to 135,144.76, 202,498.26 and 82,394.68 is: 123,458.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,144.76 : 202,498.26 = 82,394.68 : x
  2. Step 2: Convert to fraction form
    135,144.76/202,498.26 = 82,394.68/x
  3. Step 3: Cross multiply
    135,144.76x = 202,498.26 × 82,394.68
  4. Step 4: Simplify right side
    135,144.76x = 16,684,779,333.26
  5. Step 5: Solve for x
    x = 16,684,779,333.26/135,144.76
  6. Step 6: Final answer
    x = 123,458.57

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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.