Home / 128,239.37-192,341.07-43,998.15

Finding the Fourth Proportional to 128,239.37, 192,341.07 and 43,998.15

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Solution

The fourth proportional to 128,239.37, 192,341.07 and 43,998.15 is: 65,991.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,239.37 : 192,341.07 = 43,998.15 : x
  2. Step 2: Convert to fraction form
    128,239.37/192,341.07 = 43,998.15/x
  3. Step 3: Cross multiply
    128,239.37x = 192,341.07 × 43,998.15
  4. Step 4: Simplify right side
    128,239.37x = 8,462,651,249.02
  5. Step 5: Solve for x
    x = 8,462,651,249.02/128,239.37
  6. Step 6: Final answer
    x = 65,991.05

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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.