Home / 185,580.81-278,511.15-135,789.36

Finding the Fourth Proportional to 185,580.81, 278,511.15 and 135,789.36

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Solution

The fourth proportional to 185,580.81, 278,511.15 and 135,789.36 is: 203,786.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,580.81 : 278,511.15 = 135,789.36 : x
  2. Step 2: Convert to fraction form
    185,580.81/278,511.15 = 135,789.36/x
  3. Step 3: Cross multiply
    185,580.81x = 278,511.15 × 135,789.36
  4. Step 4: Simplify right side
    185,580.81x = 37,818,850,811.36
  5. Step 5: Solve for x
    x = 37,818,850,811.36/185,580.81
  6. Step 6: Final answer
    x = 203,786.43

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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.