Home / 126,046.41-188,625.34-78,683.73

Finding the Fourth Proportional to 126,046.41, 188,625.34 and 78,683.73

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Solution

The fourth proportional to 126,046.41, 188,625.34 and 78,683.73 is: 117,748.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,046.41 : 188,625.34 = 78,683.73 : x
  2. Step 2: Convert to fraction form
    126,046.41/188,625.34 = 78,683.73/x
  3. Step 3: Cross multiply
    126,046.41x = 188,625.34 × 78,683.73
  4. Step 4: Simplify right side
    126,046.41x = 14,841,745,323.72
  5. Step 5: Solve for x
    x = 14,841,745,323.72/126,046.41
  6. Step 6: Final answer
    x = 117,748.26

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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.