Home / 126,812.16-190,007.04-82,383.36

Finding the Fourth Proportional to 126,812.16, 190,007.04 and 82,383.36

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Solution

The fourth proportional to 126,812.16, 190,007.04 and 82,383.36 is: 123,437.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,812.16 : 190,007.04 = 82,383.36 : x
  2. Step 2: Convert to fraction form
    126,812.16/190,007.04 = 82,383.36/x
  3. Step 3: Cross multiply
    126,812.16x = 190,007.04 × 82,383.36
  4. Step 4: Simplify right side
    126,812.16x = 15,653,418,378.85
  5. Step 5: Solve for x
    x = 15,653,418,378.85/126,812.16
  6. Step 6: Final answer
    x = 123,437.83

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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.