Home / 128,998.24-193,422.86-50,020.20

Finding the Fourth Proportional to 128,998.24, 193,422.86 and 50,020.20

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Solution

The fourth proportional to 128,998.24, 193,422.86 and 50,020.20 is: 75,001.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,998.24 : 193,422.86 = 50,020.20 : x
  2. Step 2: Convert to fraction form
    128,998.24/193,422.86 = 50,020.20/x
  3. Step 3: Cross multiply
    128,998.24x = 193,422.86 × 50,020.20
  4. Step 4: Simplify right side
    128,998.24x = 9,675,048,924.56
  5. Step 5: Solve for x
    x = 9,675,048,924.56/128,998.24
  6. Step 6: Final answer
    x = 75,001.41

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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.