Home / 135,965.43-203,511.42-72,627.17

Finding the Fourth Proportional to 135,965.43, 203,511.42 and 72,627.17

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Solution

The fourth proportional to 135,965.43, 203,511.42 and 72,627.17 is: 108,707.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,965.43 : 203,511.42 = 72,627.17 : x
  2. Step 2: Convert to fraction form
    135,965.43/203,511.42 = 72,627.17/x
  3. Step 3: Cross multiply
    135,965.43x = 203,511.42 × 72,627.17
  4. Step 4: Simplify right side
    135,965.43x = 14,780,458,134.15
  5. Step 5: Solve for x
    x = 14,780,458,134.15/135,965.43
  6. Step 6: Final answer
    x = 108,707.48

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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.