Home / 135,665.64-203,383.56-51,379.32

Finding the Fourth Proportional to 135,665.64, 203,383.56 and 51,379.32

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Solution

The fourth proportional to 135,665.64, 203,383.56 and 51,379.32 is: 77,025.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,665.64 : 203,383.56 = 51,379.32 : x
  2. Step 2: Convert to fraction form
    135,665.64/203,383.56 = 51,379.32/x
  3. Step 3: Cross multiply
    135,665.64x = 203,383.56 × 51,379.32
  4. Step 4: Simplify right side
    135,665.64x = 10,449,709,011.98
  5. Step 5: Solve for x
    x = 10,449,709,011.98/135,665.64
  6. Step 6: Final answer
    x = 77,025.47

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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.