Home / 281,620.78-422,525.50-92,089.90

Finding the Fourth Proportional to 281,620.78, 422,525.50 and 92,089.90

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Solution

The fourth proportional to 281,620.78, 422,525.50 and 92,089.90 is: 138,165.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,620.78 : 422,525.50 = 92,089.90 : x
  2. Step 2: Convert to fraction form
    281,620.78/422,525.50 = 92,089.90/x
  3. Step 3: Cross multiply
    281,620.78x = 422,525.50 × 92,089.90
  4. Step 4: Simplify right side
    281,620.78x = 38,910,331,042.45
  5. Step 5: Solve for x
    x = 38,910,331,042.45/281,620.78
  6. Step 6: Final answer
    x = 138,165.70

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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.