Home / 135,938.70-203,908.05-102,761.10

Finding the Fourth Proportional to 135,938.70, 203,908.05 and 102,761.10

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Solution

The fourth proportional to 135,938.70, 203,908.05 and 102,761.10 is: 154,141.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,938.70 : 203,908.05 = 102,761.10 : x
  2. Step 2: Convert to fraction form
    135,938.70/203,908.05 = 102,761.10/x
  3. Step 3: Cross multiply
    135,938.70x = 203,908.05 × 102,761.10
  4. Step 4: Simplify right side
    135,938.70x = 20,953,815,516.86
  5. Step 5: Solve for x
    x = 20,953,815,516.86/135,938.70
  6. Step 6: Final answer
    x = 154,141.65

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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.