Home / 115,729.44-173,313.87-80,090.91

Finding the Fourth Proportional to 115,729.44, 173,313.87 and 80,090.91

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Solution

The fourth proportional to 115,729.44, 173,313.87 and 80,090.91 is: 119,942.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,729.44 : 173,313.87 = 80,090.91 : x
  2. Step 2: Convert to fraction form
    115,729.44/173,313.87 = 80,090.91/x
  3. Step 3: Cross multiply
    115,729.44x = 173,313.87 × 80,090.91
  4. Step 4: Simplify right side
    115,729.44x = 13,880,865,563.92
  5. Step 5: Solve for x
    x = 13,880,865,563.92/115,729.44
  6. Step 6: Final answer
    x = 119,942.39

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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.