Home / 100,639.12-150,949.86-34,077.73

Finding the Fourth Proportional to 100,639.12, 150,949.86 and 34,077.73

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Solution

The fourth proportional to 100,639.12, 150,949.86 and 34,077.73 is: 51,113.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,639.12 : 150,949.86 = 34,077.73 : x
  2. Step 2: Convert to fraction form
    100,639.12/150,949.86 = 34,077.73/x
  3. Step 3: Cross multiply
    100,639.12x = 150,949.86 × 34,077.73
  4. Step 4: Simplify right side
    100,639.12x = 5,144,028,572.62
  5. Step 5: Solve for x
    x = 5,144,028,572.62/100,639.12
  6. Step 6: Final answer
    x = 51,113.61

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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.