Home / 126,999.42-175,179.96-81,736.62

Finding the Fourth Proportional to 126,999.42, 175,179.96 and 81,736.62

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Solution

The fourth proportional to 126,999.42, 175,179.96 and 81,736.62 is: 112,745.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,999.42 : 175,179.96 = 81,736.62 : x
  2. Step 2: Convert to fraction form
    126,999.42/175,179.96 = 81,736.62/x
  3. Step 3: Cross multiply
    126,999.42x = 175,179.96 × 81,736.62
  4. Step 4: Simplify right side
    126,999.42x = 14,318,617,822.14
  5. Step 5: Solve for x
    x = 14,318,617,822.14/126,999.42
  6. Step 6: Final answer
    x = 112,745.54

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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.