Home / 126,489.44-174,573.96-76,187.36

Finding the Fourth Proportional to 126,489.44, 174,573.96 and 76,187.36

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Solution

The fourth proportional to 126,489.44, 174,573.96 and 76,187.36 is: 105,149.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,489.44 : 174,573.96 = 76,187.36 : x
  2. Step 2: Convert to fraction form
    126,489.44/174,573.96 = 76,187.36/x
  3. Step 3: Cross multiply
    126,489.44x = 174,573.96 × 76,187.36
  4. Step 4: Simplify right side
    126,489.44x = 13,300,329,137.15
  5. Step 5: Solve for x
    x = 13,300,329,137.15/126,489.44
  6. Step 6: Final answer
    x = 105,149.72

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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.