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Finding the Fourth Proportional to 188,900, 260,675.88 and 104,014.88

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Solution

The fourth proportional to 188,900, 260,675.88 and 104,014.88 is: 143,537.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,900 : 260,675.88 = 104,014.88 : x
  2. Step 2: Convert to fraction form
    188,900/260,675.88 = 104,014.88/x
  3. Step 3: Cross multiply
    188,900x = 260,675.88 × 104,014.88
  4. Step 4: Simplify right side
    188,900x = 27,114,170,377.09
  5. Step 5: Solve for x
    x = 27,114,170,377.09/188,900
  6. Step 6: Final answer
    x = 143,537.16

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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.