Home / 188,142.21-282,241.71-55,005.75

Finding the Fourth Proportional to 188,142.21, 282,241.71 and 55,005.75

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Solution

The fourth proportional to 188,142.21, 282,241.71 and 55,005.75 is: 82,516.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,142.21 : 282,241.71 = 55,005.75 : x
  2. Step 2: Convert to fraction form
    188,142.21/282,241.71 = 55,005.75/x
  3. Step 3: Cross multiply
    188,142.21x = 282,241.71 × 55,005.75
  4. Step 4: Simplify right side
    188,142.21x = 15,524,916,939.83
  5. Step 5: Solve for x
    x = 15,524,916,939.83/188,142.21
  6. Step 6: Final answer
    x = 82,516.93

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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.