Home / 219,905.10-329,814.45-72,161.10

Finding the Fourth Proportional to 219,905.10, 329,814.45 and 72,161.10

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Solution

The fourth proportional to 219,905.10, 329,814.45 and 72,161.10 is: 108,227.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,905.10 : 329,814.45 = 72,161.10 : x
  2. Step 2: Convert to fraction form
    219,905.10/329,814.45 = 72,161.10/x
  3. Step 3: Cross multiply
    219,905.10x = 329,814.45 × 72,161.10
  4. Step 4: Simplify right side
    219,905.10x = 23,799,773,507.90
  5. Step 5: Solve for x
    x = 23,799,773,507.90/219,905.10
  6. Step 6: Final answer
    x = 108,227.47

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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.