Home / 102,840.98-154,012.44-71,162.24

Finding the Fourth Proportional to 102,840.98, 154,012.44 and 71,162.24

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Solution

The fourth proportional to 102,840.98, 154,012.44 and 71,162.24 is: 106,571.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,840.98 : 154,012.44 = 71,162.24 : x
  2. Step 2: Convert to fraction form
    102,840.98/154,012.44 = 71,162.24/x
  3. Step 3: Cross multiply
    102,840.98x = 154,012.44 × 71,162.24
  4. Step 4: Simplify right side
    102,840.98x = 10,959,870,218.27
  5. Step 5: Solve for x
    x = 10,959,870,218.27/102,840.98
  6. Step 6: Final answer
    x = 106,571.04

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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.