Home / 188,911.12-283,321.32-55,755.40

Finding the Fourth Proportional to 188,911.12, 283,321.32 and 55,755.40

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Solution

The fourth proportional to 188,911.12, 283,321.32 and 55,755.40 is: 83,619.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,911.12 : 283,321.32 = 55,755.40 : x
  2. Step 2: Convert to fraction form
    188,911.12/283,321.32 = 55,755.40/x
  3. Step 3: Cross multiply
    188,911.12x = 283,321.32 × 55,755.40
  4. Step 4: Simplify right side
    188,911.12x = 15,796,693,525.13
  5. Step 5: Solve for x
    x = 15,796,693,525.13/188,911.12
  6. Step 6: Final answer
    x = 83,619.71

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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.