Home / 219,819.70-329,729.55-130,006.90

Finding the Fourth Proportional to 219,819.70, 329,729.55 and 130,006.90

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Solution

The fourth proportional to 219,819.70, 329,729.55 and 130,006.90 is: 195,010.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,819.70 : 329,729.55 = 130,006.90 : x
  2. Step 2: Convert to fraction form
    219,819.70/329,729.55 = 130,006.90/x
  3. Step 3: Cross multiply
    219,819.70x = 329,729.55 × 130,006.90
  4. Step 4: Simplify right side
    219,819.70x = 42,867,116,633.90
  5. Step 5: Solve for x
    x = 42,867,116,633.90/219,819.70
  6. Step 6: Final answer
    x = 195,010.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.