Home / 136,438.86-188,233.87-82,704.27

Finding the Fourth Proportional to 136,438.86, 188,233.87 and 82,704.27

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Solution

The fourth proportional to 136,438.86, 188,233.87 and 82,704.27 is: 114,100.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,438.86 : 188,233.87 = 82,704.27 : x
  2. Step 2: Convert to fraction form
    136,438.86/188,233.87 = 82,704.27/x
  3. Step 3: Cross multiply
    136,438.86x = 188,233.87 × 82,704.27
  4. Step 4: Simplify right side
    136,438.86x = 15,567,744,807.62
  5. Step 5: Solve for x
    x = 15,567,744,807.62/136,438.86
  6. Step 6: Final answer
    x = 114,100.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.