Home / 173,289.20-259,739.40-89,016.80

Finding the Fourth Proportional to 173,289.20, 259,739.40 and 89,016.80

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Solution

The fourth proportional to 173,289.20, 259,739.40 and 89,016.80 is: 133,425.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,289.20 : 259,739.40 = 89,016.80 : x
  2. Step 2: Convert to fraction form
    173,289.20/259,739.40 = 89,016.80/x
  3. Step 3: Cross multiply
    173,289.20x = 259,739.40 × 89,016.80
  4. Step 4: Simplify right side
    173,289.20x = 23,121,170,221.92
  5. Step 5: Solve for x
    x = 23,121,170,221.92/173,289.20
  6. Step 6: Final answer
    x = 133,425.34

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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.