Home / 149,867.92-206,811.60-81,887.24

Finding the Fourth Proportional to 149,867.92, 206,811.60 and 81,887.24

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Solution

The fourth proportional to 149,867.92, 206,811.60 and 81,887.24 is: 113,001.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,867.92 : 206,811.60 = 81,887.24 : x
  2. Step 2: Convert to fraction form
    149,867.92/206,811.60 = 81,887.24/x
  3. Step 3: Cross multiply
    149,867.92x = 206,811.60 × 81,887.24
  4. Step 4: Simplify right side
    149,867.92x = 16,935,231,123.98
  5. Step 5: Solve for x
    x = 16,935,231,123.98/149,867.92
  6. Step 6: Final answer
    x = 113,001.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.