Home / 128,078.04-192,124.26-34,591.16

Finding the Fourth Proportional to 128,078.04, 192,124.26 and 34,591.16

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Solution

The fourth proportional to 128,078.04, 192,124.26 and 34,591.16 is: 51,888.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,078.04 : 192,124.26 = 34,591.16 : x
  2. Step 2: Convert to fraction form
    128,078.04/192,124.26 = 34,591.16/x
  3. Step 3: Cross multiply
    128,078.04x = 192,124.26 × 34,591.16
  4. Step 4: Simplify right side
    128,078.04x = 6,645,801,017.54
  5. Step 5: Solve for x
    x = 6,645,801,017.54/128,078.04
  6. Step 6: Final answer
    x = 51,888.68

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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.