Home / 100,638.45-150,998.68-50,732.93

Finding the Fourth Proportional to 100,638.45, 150,998.68 and 50,732.93

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Solution

The fourth proportional to 100,638.45, 150,998.68 and 50,732.93 is: 76,120.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,638.45 : 150,998.68 = 50,732.93 : x
  2. Step 2: Convert to fraction form
    100,638.45/150,998.68 = 50,732.93/x
  3. Step 3: Cross multiply
    100,638.45x = 150,998.68 × 50,732.93
  4. Step 4: Simplify right side
    100,638.45x = 7,660,605,903.45
  5. Step 5: Solve for x
    x = 7,660,605,903.45/100,638.45
  6. Step 6: Final answer
    x = 76,120.07

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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.