Home / 188,369.88-282,085-131,945.28

Finding the Fourth Proportional to 188,369.88, 282,085 and 131,945.28

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Solution

The fourth proportional to 188,369.88, 282,085 and 131,945.28 is: 197,588.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,369.88 : 282,085 = 131,945.28 : x
  2. Step 2: Convert to fraction form
    188,369.88/282,085 = 131,945.28/x
  3. Step 3: Cross multiply
    188,369.88x = 282,085 × 131,945.28
  4. Step 4: Simplify right side
    188,369.88x = 37,219,784,308.80
  5. Step 5: Solve for x
    x = 37,219,784,308.80/188,369.88
  6. Step 6: Final answer
    x = 197,588.83

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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.