Home / 115,405.20-173,003.31-45,265.68

Finding the Fourth Proportional to 115,405.20, 173,003.31 and 45,265.68

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Solution

The fourth proportional to 115,405.20, 173,003.31 and 45,265.68 is: 67,857.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,405.20 : 173,003.31 = 45,265.68 : x
  2. Step 2: Convert to fraction form
    115,405.20/173,003.31 = 45,265.68/x
  3. Step 3: Cross multiply
    115,405.20x = 173,003.31 × 45,265.68
  4. Step 4: Simplify right side
    115,405.20x = 7,831,112,469.40
  5. Step 5: Solve for x
    x = 7,831,112,469.40/115,405.20
  6. Step 6: Final answer
    x = 67,857.54

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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.