Home / 104,695.20-144,493.68-71,172

Finding the Fourth Proportional to 104,695.20, 144,493.68 and 71,172

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Solution

The fourth proportional to 104,695.20, 144,493.68 and 71,172 is: 98,227.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,695.20 : 144,493.68 = 71,172 : x
  2. Step 2: Convert to fraction form
    104,695.20/144,493.68 = 71,172/x
  3. Step 3: Cross multiply
    104,695.20x = 144,493.68 × 71,172
  4. Step 4: Simplify right side
    104,695.20x = 10,283,904,192.96
  5. Step 5: Solve for x
    x = 10,283,904,192.96/104,695.20
  6. Step 6: Final answer
    x = 98,227.08

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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.