Home / 112,571.44-156,059-106,579.12

Finding the Fourth Proportional to 112,571.44, 156,059 and 106,579.12

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Solution

The fourth proportional to 112,571.44, 156,059 and 106,579.12 is: 147,751.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,571.44 : 156,059 = 106,579.12 : x
  2. Step 2: Convert to fraction form
    112,571.44/156,059 = 106,579.12/x
  3. Step 3: Cross multiply
    112,571.44x = 156,059 × 106,579.12
  4. Step 4: Simplify right side
    112,571.44x = 16,632,630,888.08
  5. Step 5: Solve for x
    x = 16,632,630,888.08/112,571.44
  6. Step 6: Final answer
    x = 147,751.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.