Home / 159,016.90-219,401.85-102,511.30

Finding the Fourth Proportional to 159,016.90, 219,401.85 and 102,511.30

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Solution

The fourth proportional to 159,016.90, 219,401.85 and 102,511.30 is: 141,438.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,016.90 : 219,401.85 = 102,511.30 : x
  2. Step 2: Convert to fraction form
    159,016.90/219,401.85 = 102,511.30/x
  3. Step 3: Cross multiply
    159,016.90x = 219,401.85 × 102,511.30
  4. Step 4: Simplify right side
    159,016.90x = 22,491,168,865.91
  5. Step 5: Solve for x
    x = 22,491,168,865.91/159,016.90
  6. Step 6: Final answer
    x = 141,438.86

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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.