Home / 115,427.20-173,140.80-106,873.60

Finding the Fourth Proportional to 115,427.20, 173,140.80 and 106,873.60

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Solution

The fourth proportional to 115,427.20, 173,140.80 and 106,873.60 is: 160,310.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,427.20 : 173,140.80 = 106,873.60 : x
  2. Step 2: Convert to fraction form
    115,427.20/173,140.80 = 106,873.60/x
  3. Step 3: Cross multiply
    115,427.20x = 173,140.80 × 106,873.60
  4. Step 4: Simplify right side
    115,427.20x = 18,504,180,602.88
  5. Step 5: Solve for x
    x = 18,504,180,602.88/115,427.20
  6. Step 6: Final answer
    x = 160,310.40

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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.