Home / 209,102.77-313,660.30-51,331.22

Finding the Fourth Proportional to 209,102.77, 313,660.30 and 51,331.22

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Solution

The fourth proportional to 209,102.77, 313,660.30 and 51,331.22 is: 76,998.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,102.77 : 313,660.30 = 51,331.22 : x
  2. Step 2: Convert to fraction form
    209,102.77/313,660.30 = 51,331.22/x
  3. Step 3: Cross multiply
    209,102.77x = 313,660.30 × 51,331.22
  4. Step 4: Simplify right side
    209,102.77x = 16,100,565,440.41
  5. Step 5: Solve for x
    x = 16,100,565,440.41/209,102.77
  6. Step 6: Final answer
    x = 76,998.34

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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.