Home / 188,788.80-283,282.20-76,480.92

Finding the Fourth Proportional to 188,788.80, 283,282.20 and 76,480.92

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Solution

The fourth proportional to 188,788.80, 283,282.20 and 76,480.92 is: 114,761.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,788.80 : 283,282.20 = 76,480.92 : x
  2. Step 2: Convert to fraction form
    188,788.80/283,282.20 = 76,480.92/x
  3. Step 3: Cross multiply
    188,788.80x = 283,282.20 × 76,480.92
  4. Step 4: Simplify right side
    188,788.80x = 21,665,683,275.62
  5. Step 5: Solve for x
    x = 21,665,683,275.62/188,788.80
  6. Step 6: Final answer
    x = 114,761.49

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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.