Home / 135,605.22-203,412.69-56,610.78

Finding the Fourth Proportional to 135,605.22, 203,412.69 and 56,610.78

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Solution

The fourth proportional to 135,605.22, 203,412.69 and 56,610.78 is: 84,918.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,605.22 : 203,412.69 = 56,610.78 : x
  2. Step 2: Convert to fraction form
    135,605.22/203,412.69 = 56,610.78/x
  3. Step 3: Cross multiply
    135,605.22x = 203,412.69 × 56,610.78
  4. Step 4: Simplify right side
    135,605.22x = 11,515,351,042.80
  5. Step 5: Solve for x
    x = 11,515,351,042.80/135,605.22
  6. Step 6: Final answer
    x = 84,918.20

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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.