Home / 159,201.10-219,695.94-87,581.20

Finding the Fourth Proportional to 159,201.10, 219,695.94 and 87,581.20

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Solution

The fourth proportional to 159,201.10, 219,695.94 and 87,581.20 is: 120,861.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,201.10 : 219,695.94 = 87,581.20 : x
  2. Step 2: Convert to fraction form
    159,201.10/219,695.94 = 87,581.20/x
  3. Step 3: Cross multiply
    159,201.10x = 219,695.94 × 87,581.20
  4. Step 4: Simplify right side
    159,201.10x = 19,241,234,060.33
  5. Step 5: Solve for x
    x = 19,241,234,060.33/159,201.10
  6. Step 6: Final answer
    x = 120,861.19

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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.