Home / 126,812.66-190,007.79-82,383.86

Finding the Fourth Proportional to 126,812.66, 190,007.79 and 82,383.86

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Solution

The fourth proportional to 126,812.66, 190,007.79 and 82,383.86 is: 123,438.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,812.66 : 190,007.79 = 82,383.86 : x
  2. Step 2: Convert to fraction form
    126,812.66/190,007.79 = 82,383.86/x
  3. Step 3: Cross multiply
    126,812.66x = 190,007.79 × 82,383.86
  4. Step 4: Simplify right side
    126,812.66x = 15,653,575,170.27
  5. Step 5: Solve for x
    x = 15,653,575,170.27/126,812.66
  6. Step 6: Final answer
    x = 123,438.58

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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.