Home / 105,479.87-158,329.22-70,662.83

Finding the Fourth Proportional to 105,479.87, 158,329.22 and 70,662.83

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Solution

The fourth proportional to 105,479.87, 158,329.22 and 70,662.83 is: 106,067.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,479.87 : 158,329.22 = 70,662.83 : x
  2. Step 2: Convert to fraction form
    105,479.87/158,329.22 = 70,662.83/x
  3. Step 3: Cross multiply
    105,479.87x = 158,329.22 × 70,662.83
  4. Step 4: Simplify right side
    105,479.87x = 11,187,989,611.93
  5. Step 5: Solve for x
    x = 11,187,989,611.93/105,479.87
  6. Step 6: Final answer
    x = 106,067.54

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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.