Home / 115,426.20-173,139.30-106,872.60

Finding the Fourth Proportional to 115,426.20, 173,139.30 and 106,872.60

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Solution

The fourth proportional to 115,426.20, 173,139.30 and 106,872.60 is: 160,308.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,426.20 : 173,139.30 = 106,872.60 : x
  2. Step 2: Convert to fraction form
    115,426.20/173,139.30 = 106,872.60/x
  3. Step 3: Cross multiply
    115,426.20x = 173,139.30 × 106,872.60
  4. Step 4: Simplify right side
    115,426.20x = 18,503,847,153.18
  5. Step 5: Solve for x
    x = 18,503,847,153.18/115,426.20
  6. Step 6: Final answer
    x = 160,308.90

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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.