Home / 144,271.20-199,093.12-80,608.32

Finding the Fourth Proportional to 144,271.20, 199,093.12 and 80,608.32

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Solution

The fourth proportional to 144,271.20, 199,093.12 and 80,608.32 is: 111,238.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,271.20 : 199,093.12 = 80,608.32 : x
  2. Step 2: Convert to fraction form
    144,271.20/199,093.12 = 80,608.32/x
  3. Step 3: Cross multiply
    144,271.20x = 199,093.12 × 80,608.32
  4. Step 4: Simplify right side
    144,271.20x = 16,048,561,926.76
  5. Step 5: Solve for x
    x = 16,048,561,926.76/144,271.20
  6. Step 6: Final answer
    x = 111,238.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.