Home / 128,832.12-193,315.74-93,584.64

Finding the Fourth Proportional to 128,832.12, 193,315.74 and 93,584.64

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Solution

The fourth proportional to 128,832.12, 193,315.74 and 93,584.64 is: 140,426.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,832.12 : 193,315.74 = 93,584.64 : x
  2. Step 2: Convert to fraction form
    128,832.12/193,315.74 = 93,584.64/x
  3. Step 3: Cross multiply
    128,832.12x = 193,315.74 × 93,584.64
  4. Step 4: Simplify right side
    128,832.12x = 18,091,383,934.23
  5. Step 5: Solve for x
    x = 18,091,383,934.23/128,832.12
  6. Step 6: Final answer
    x = 140,426.04

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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.