Home / 128,206.23-192,309.47-33,436.32

Finding the Fourth Proportional to 128,206.23, 192,309.47 and 33,436.32

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Solution

The fourth proportional to 128,206.23, 192,309.47 and 33,436.32 is: 50,154.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,206.23 : 192,309.47 = 33,436.32 : x
  2. Step 2: Convert to fraction form
    128,206.23/192,309.47 = 33,436.32/x
  3. Step 3: Cross multiply
    128,206.23x = 192,309.47 × 33,436.32
  4. Step 4: Simplify right side
    128,206.23x = 6,430,120,977.95
  5. Step 5: Solve for x
    x = 6,430,120,977.95/128,206.23
  6. Step 6: Final answer
    x = 50,154.51

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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.