Home / 126,982.06-190,504.80-89,615.06

Finding the Fourth Proportional to 126,982.06, 190,504.80 and 89,615.06

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Solution

The fourth proportional to 126,982.06, 190,504.80 and 89,615.06 is: 134,444.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,982.06 : 190,504.80 = 89,615.06 : x
  2. Step 2: Convert to fraction form
    126,982.06/190,504.80 = 89,615.06/x
  3. Step 3: Cross multiply
    126,982.06x = 190,504.80 × 89,615.06
  4. Step 4: Simplify right side
    126,982.06x = 17,072,099,082.29
  5. Step 5: Solve for x
    x = 17,072,099,082.29/126,982.06
  6. Step 6: Final answer
    x = 134,444.97

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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.