Home / 205,187.91-308,122.26-126,800.37

Finding the Fourth Proportional to 205,187.91, 308,122.26 and 126,800.37

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Solution

The fourth proportional to 205,187.91, 308,122.26 and 126,800.37 is: 190,410.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,187.91 : 308,122.26 = 126,800.37 : x
  2. Step 2: Convert to fraction form
    205,187.91/308,122.26 = 126,800.37/x
  3. Step 3: Cross multiply
    205,187.91x = 308,122.26 × 126,800.37
  4. Step 4: Simplify right side
    205,187.91x = 39,070,016,573.24
  5. Step 5: Solve for x
    x = 39,070,016,573.24/205,187.91
  6. Step 6: Final answer
    x = 190,410.91

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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.