Home / 135,935.70-203,903.55-102,758.10

Finding the Fourth Proportional to 135,935.70, 203,903.55 and 102,758.10

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Solution

The fourth proportional to 135,935.70, 203,903.55 and 102,758.10 is: 154,137.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,935.70 : 203,903.55 = 102,758.10 : x
  2. Step 2: Convert to fraction form
    135,935.70/203,903.55 = 102,758.10/x
  3. Step 3: Cross multiply
    135,935.70x = 203,903.55 × 102,758.10
  4. Step 4: Simplify right side
    135,935.70x = 20,952,741,381.26
  5. Step 5: Solve for x
    x = 20,952,741,381.26/135,935.70
  6. Step 6: Final answer
    x = 154,137.15

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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.