Home / 126,792.56-190,007.40-71,271.92

Finding the Fourth Proportional to 126,792.56, 190,007.40 and 71,271.92

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Solution

The fourth proportional to 126,792.56, 190,007.40 and 71,271.92 is: 106,805.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,792.56 : 190,007.40 = 71,271.92 : x
  2. Step 2: Convert to fraction form
    126,792.56/190,007.40 = 71,271.92/x
  3. Step 3: Cross multiply
    126,792.56x = 190,007.40 × 71,271.92
  4. Step 4: Simplify right side
    126,792.56x = 13,542,192,212.21
  5. Step 5: Solve for x
    x = 13,542,192,212.21/126,792.56
  6. Step 6: Final answer
    x = 106,805.89

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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.