Home / 135,735.56-187,316.12-74,481.36

Finding the Fourth Proportional to 135,735.56, 187,316.12 and 74,481.36

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Solution

The fourth proportional to 135,735.56, 187,316.12 and 74,481.36 is: 102,784.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,735.56 : 187,316.12 = 74,481.36 : x
  2. Step 2: Convert to fraction form
    135,735.56/187,316.12 = 74,481.36/x
  3. Step 3: Cross multiply
    135,735.56x = 187,316.12 × 74,481.36
  4. Step 4: Simplify right side
    135,735.56x = 13,951,559,367.52
  5. Step 5: Solve for x
    x = 13,951,559,367.52/135,735.56
  6. Step 6: Final answer
    x = 102,784.85

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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.