Home / 128,998.24-193,509.60-50,118.56

Finding the Fourth Proportional to 128,998.24, 193,509.60 and 50,118.56

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Solution

The fourth proportional to 128,998.24, 193,509.60 and 50,118.56 is: 75,182.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,998.24 : 193,509.60 = 50,118.56 : x
  2. Step 2: Convert to fraction form
    128,998.24/193,509.60 = 50,118.56/x
  3. Step 3: Cross multiply
    128,998.24x = 193,509.60 × 50,118.56
  4. Step 4: Simplify right side
    128,998.24x = 9,698,422,498.18
  5. Step 5: Solve for x
    x = 9,698,422,498.18/128,998.24
  6. Step 6: Final answer
    x = 75,182.60

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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.