Home / 159,382.36-219,873.78-102,811.96

Finding the Fourth Proportional to 159,382.36, 219,873.78 and 102,811.96

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Solution

The fourth proportional to 159,382.36, 219,873.78 and 102,811.96 is: 141,832.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,382.36 : 219,873.78 = 102,811.96 : x
  2. Step 2: Convert to fraction form
    159,382.36/219,873.78 = 102,811.96/x
  3. Step 3: Cross multiply
    159,382.36x = 219,873.78 × 102,811.96
  4. Step 4: Simplify right side
    159,382.36x = 22,605,654,274.41
  5. Step 5: Solve for x
    x = 22,605,654,274.41/159,382.36
  6. Step 6: Final answer
    x = 141,832.85

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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.