Home / 135,499.14-203,137.56-51,211.38

Finding the Fourth Proportional to 135,499.14, 203,137.56 and 51,211.38

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Solution

The fourth proportional to 135,499.14, 203,137.56 and 51,211.38 is: 76,775.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,499.14 : 203,137.56 = 51,211.38 : x
  2. Step 2: Convert to fraction form
    135,499.14/203,137.56 = 51,211.38/x
  3. Step 3: Cross multiply
    135,499.14x = 203,137.56 × 51,211.38
  4. Step 4: Simplify right side
    135,499.14x = 10,402,954,777.43
  5. Step 5: Solve for x
    x = 10,402,954,777.43/135,499.14
  6. Step 6: Final answer
    x = 76,775.06

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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.