Home / 159,091.57-219,579.78-100,910.67

Finding the Fourth Proportional to 159,091.57, 219,579.78 and 100,910.67

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Solution

The fourth proportional to 159,091.57, 219,579.78 and 100,910.67 is: 139,277.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,091.57 : 219,579.78 = 100,910.67 : x
  2. Step 2: Convert to fraction form
    159,091.57/219,579.78 = 100,910.67/x
  3. Step 3: Cross multiply
    159,091.57x = 219,579.78 × 100,910.67
  4. Step 4: Simplify right side
    159,091.57x = 22,157,942,718.25
  5. Step 5: Solve for x
    x = 22,157,942,718.25/159,091.57
  6. Step 6: Final answer
    x = 139,277.92

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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.