Home / 115,604.20-173,406.30-71,086.60

Finding the Fourth Proportional to 115,604.20, 173,406.30 and 71,086.60

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Solution

The fourth proportional to 115,604.20, 173,406.30 and 71,086.60 is: 106,629.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,604.20 : 173,406.30 = 71,086.60 : x
  2. Step 2: Convert to fraction form
    115,604.20/173,406.30 = 71,086.60/x
  3. Step 3: Cross multiply
    115,604.20x = 173,406.30 × 71,086.60
  4. Step 4: Simplify right side
    115,604.20x = 12,326,864,285.58
  5. Step 5: Solve for x
    x = 12,326,864,285.58/115,604.20
  6. Step 6: Final answer
    x = 106,629.90

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1.5x scale

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.