Home / 188,328.73-282,420.81-80,189.58

Finding the Fourth Proportional to 188,328.73, 282,420.81 and 80,189.58

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Solution

The fourth proportional to 188,328.73, 282,420.81 and 80,189.58 is: 120,253.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,328.73 : 282,420.81 = 80,189.58 : x
  2. Step 2: Convert to fraction form
    188,328.73/282,420.81 = 80,189.58/x
  3. Step 3: Cross multiply
    188,328.73x = 282,420.81 × 80,189.58
  4. Step 4: Simplify right side
    188,328.73x = 22,647,206,137.16
  5. Step 5: Solve for x
    x = 22,647,206,137.16/188,328.73
  6. Step 6: Final answer
    x = 120,253.59

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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.