Home / 128,274.24-177,067.83-114,821.76

Finding the Fourth Proportional to 128,274.24, 177,067.83 and 114,821.76

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Solution

The fourth proportional to 128,274.24, 177,067.83 and 114,821.76 is: 158,498.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,274.24 : 177,067.83 = 114,821.76 : x
  2. Step 2: Convert to fraction form
    128,274.24/177,067.83 = 114,821.76/x
  3. Step 3: Cross multiply
    128,274.24x = 177,067.83 × 114,821.76
  4. Step 4: Simplify right side
    128,274.24x = 20,331,239,879.98
  5. Step 5: Solve for x
    x = 20,331,239,879.98/128,274.24
  6. Step 6: Final answer
    x = 158,498.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.