Home / 131,078.44-180,890.82-71,462.44

Finding the Fourth Proportional to 131,078.44, 180,890.82 and 71,462.44

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Solution

The fourth proportional to 131,078.44, 180,890.82 and 71,462.44 is: 98,619.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,078.44 : 180,890.82 = 71,462.44 : x
  2. Step 2: Convert to fraction form
    131,078.44/180,890.82 = 71,462.44/x
  3. Step 3: Cross multiply
    131,078.44x = 180,890.82 × 71,462.44
  4. Step 4: Simplify right side
    131,078.44x = 12,926,899,370.80
  5. Step 5: Solve for x
    x = 12,926,899,370.80/131,078.44
  6. Step 6: Final answer
    x = 98,619.57

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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.