Home / 126,986.06-190,510.80-89,619.06

Finding the Fourth Proportional to 126,986.06, 190,510.80 and 89,619.06

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Solution

The fourth proportional to 126,986.06, 190,510.80 and 89,619.06 is: 134,450.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,986.06 : 190,510.80 = 89,619.06 : x
  2. Step 2: Convert to fraction form
    126,986.06/190,510.80 = 89,619.06/x
  3. Step 3: Cross multiply
    126,986.06x = 190,510.80 × 89,619.06
  4. Step 4: Simplify right side
    126,986.06x = 17,073,398,815.85
  5. Step 5: Solve for x
    x = 17,073,398,815.85/126,986.06
  6. Step 6: Final answer
    x = 134,450.97

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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.