Home / 90,733.07-135,998.75-68,474.27

Finding the Fourth Proportional to 90,733.07, 135,998.75 and 68,474.27

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Solution

The fourth proportional to 90,733.07, 135,998.75 and 68,474.27 is: 102,635.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,733.07 : 135,998.75 = 68,474.27 : x
  2. Step 2: Convert to fraction form
    90,733.07/135,998.75 = 68,474.27/x
  3. Step 3: Cross multiply
    90,733.07x = 135,998.75 × 68,474.27
  4. Step 4: Simplify right side
    90,733.07x = 9,312,414,618.35
  5. Step 5: Solve for x
    x = 9,312,414,618.35/90,733.07
  6. Step 6: Final answer
    x = 102,635.29

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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.