Home / 131,137.43-180,969.39-73,776.83

Finding the Fourth Proportional to 131,137.43, 180,969.39 and 73,776.83

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Solution

The fourth proportional to 131,137.43, 180,969.39 and 73,776.83 is: 101,811.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,137.43 : 180,969.39 = 73,776.83 : x
  2. Step 2: Convert to fraction form
    131,137.43/180,969.39 = 73,776.83/x
  3. Step 3: Cross multiply
    131,137.43x = 180,969.39 × 73,776.83
  4. Step 4: Simplify right side
    131,137.43x = 13,351,347,016.39
  5. Step 5: Solve for x
    x = 13,351,347,016.39/131,137.43
  6. Step 6: Final answer
    x = 101,811.87

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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.