Home / 131,746.41-197,232.03-81,665.73

Finding the Fourth Proportional to 131,746.41, 197,232.03 and 81,665.73

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Solution

The fourth proportional to 131,746.41, 197,232.03 and 81,665.73 is: 122,258.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,746.41 : 197,232.03 = 81,665.73 : x
  2. Step 2: Convert to fraction form
    131,746.41/197,232.03 = 81,665.73/x
  3. Step 3: Cross multiply
    131,746.41x = 197,232.03 × 81,665.73
  4. Step 4: Simplify right side
    131,746.41x = 16,107,097,709.33
  5. Step 5: Solve for x
    x = 16,107,097,709.33/131,746.41
  6. Step 6: Final answer
    x = 122,258.34

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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.