Home / 128,208.82-192,052.11-104,600.50

Finding the Fourth Proportional to 128,208.82, 192,052.11 and 104,600.50

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Solution

The fourth proportional to 128,208.82, 192,052.11 and 104,600.50 is: 156,687.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,208.82 : 192,052.11 = 104,600.50 : x
  2. Step 2: Convert to fraction form
    128,208.82/192,052.11 = 104,600.50/x
  3. Step 3: Cross multiply
    128,208.82x = 192,052.11 × 104,600.50
  4. Step 4: Simplify right side
    128,208.82x = 20,088,746,732.06
  5. Step 5: Solve for x
    x = 20,088,746,732.06/128,208.82
  6. Step 6: Final answer
    x = 156,687.71

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1.5x scale

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.