Home / 105,844.80-158,767.20-76,198.80

Finding the Fourth Proportional to 105,844.80, 158,767.20 and 76,198.80

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Solution

The fourth proportional to 105,844.80, 158,767.20 and 76,198.80 is: 114,298.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,844.80 : 158,767.20 = 76,198.80 : x
  2. Step 2: Convert to fraction form
    105,844.80/158,767.20 = 76,198.80/x
  3. Step 3: Cross multiply
    105,844.80x = 158,767.20 × 76,198.80
  4. Step 4: Simplify right side
    105,844.80x = 12,097,870,119.36
  5. Step 5: Solve for x
    x = 12,097,870,119.36/105,844.80
  6. Step 6: Final answer
    x = 114,298.20

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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.