Home / 188,716.80-260,296.02-128,251.92

Finding the Fourth Proportional to 188,716.80, 260,296.02 and 128,251.92

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Solution

The fourth proportional to 188,716.80, 260,296.02 and 128,251.92 is: 176,897.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,716.80 : 260,296.02 = 128,251.92 : x
  2. Step 2: Convert to fraction form
    188,716.80/260,296.02 = 128,251.92/x
  3. Step 3: Cross multiply
    188,716.80x = 260,296.02 × 128,251.92
  4. Step 4: Simplify right side
    188,716.80x = 33,383,464,333.36
  5. Step 5: Solve for x
    x = 33,383,464,333.36/188,716.80
  6. Step 6: Final answer
    x = 176,897.15

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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.