Home / 135,132.37-186,481.44-74,704.55

Finding the Fourth Proportional to 135,132.37, 186,481.44 and 74,704.55

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Solution

The fourth proportional to 135,132.37, 186,481.44 and 74,704.55 is: 103,091.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,132.37 : 186,481.44 = 74,704.55 : x
  2. Step 2: Convert to fraction form
    135,132.37/186,481.44 = 74,704.55/x
  3. Step 3: Cross multiply
    135,132.37x = 186,481.44 × 74,704.55
  4. Step 4: Simplify right side
    135,132.37x = 13,931,011,126.14
  5. Step 5: Solve for x
    x = 13,931,011,126.14/135,132.37
  6. Step 6: Final answer
    x = 103,091.59

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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.