Home / 126,996.47-175,191.68-81,077.57

Finding the Fourth Proportional to 126,996.47, 175,191.68 and 81,077.57

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Solution

The fourth proportional to 126,996.47, 175,191.68 and 81,077.57 is: 111,846.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,996.47 : 175,191.68 = 81,077.57 : x
  2. Step 2: Convert to fraction form
    126,996.47/175,191.68 = 81,077.57/x
  3. Step 3: Cross multiply
    126,996.47x = 175,191.68 × 81,077.57
  4. Step 4: Simplify right side
    126,996.47x = 14,204,115,025.35
  5. Step 5: Solve for x
    x = 14,204,115,025.35/126,996.47
  6. Step 6: Final answer
    x = 111,846.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.