Home / 112,664.80-168,997.20-71,295.20

Finding the Fourth Proportional to 112,664.80, 168,997.20 and 71,295.20

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Solution

The fourth proportional to 112,664.80, 168,997.20 and 71,295.20 is: 106,942.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,664.80 : 168,997.20 = 71,295.20 : x
  2. Step 2: Convert to fraction form
    112,664.80/168,997.20 = 71,295.20/x
  3. Step 3: Cross multiply
    112,664.80x = 168,997.20 × 71,295.20
  4. Step 4: Simplify right side
    112,664.80x = 12,048,689,173.44
  5. Step 5: Solve for x
    x = 12,048,689,173.44/112,664.80
  6. Step 6: Final answer
    x = 106,942.80

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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.