Home / 135,639.70-203,379.63-55,653.82

Finding the Fourth Proportional to 135,639.70, 203,379.63 and 55,653.82

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Solution

The fourth proportional to 135,639.70, 203,379.63 and 55,653.82 is: 83,447.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,639.70 : 203,379.63 = 55,653.82 : x
  2. Step 2: Convert to fraction form
    135,639.70/203,379.63 = 55,653.82/x
  3. Step 3: Cross multiply
    135,639.70x = 203,379.63 × 55,653.82
  4. Step 4: Simplify right side
    135,639.70x = 11,318,853,319.69
  5. Step 5: Solve for x
    x = 11,318,853,319.69/135,639.70
  6. Step 6: Final answer
    x = 83,447.94

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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.