Home / 126,936.49-175,191.65-81,015.96

Finding the Fourth Proportional to 126,936.49, 175,191.65 and 81,015.96

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Solution

The fourth proportional to 126,936.49, 175,191.65 and 81,015.96 is: 111,814.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,936.49 : 175,191.65 = 81,015.96 : x
  2. Step 2: Convert to fraction form
    126,936.49/175,191.65 = 81,015.96/x
  3. Step 3: Cross multiply
    126,936.49x = 175,191.65 × 81,015.96
  4. Step 4: Simplify right side
    126,936.49x = 14,193,319,014.11
  5. Step 5: Solve for x
    x = 14,193,319,014.11/126,936.49
  6. Step 6: Final answer
    x = 111,814.33

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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.