Home / 190,673.20-285,961.82-78,384.73

Finding the Fourth Proportional to 190,673.20, 285,961.82 and 78,384.73

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Solution

The fourth proportional to 190,673.20, 285,961.82 and 78,384.73 is: 117,557.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,673.20 : 285,961.82 = 78,384.73 : x
  2. Step 2: Convert to fraction form
    190,673.20/285,961.82 = 78,384.73/x
  3. Step 3: Cross multiply
    190,673.20x = 285,961.82 × 78,384.73
  4. Step 4: Simplify right side
    190,673.20x = 22,415,039,659.09
  5. Step 5: Solve for x
    x = 22,415,039,659.09/190,673.20
  6. Step 6: Final answer
    x = 117,557.37

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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.