Home / 281,402.30-422,125.41-81,725.96

Finding the Fourth Proportional to 281,402.30, 422,125.41 and 81,725.96

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Solution

The fourth proportional to 281,402.30, 422,125.41 and 81,725.96 is: 122,595.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,402.30 : 422,125.41 = 81,725.96 : x
  2. Step 2: Convert to fraction form
    281,402.30/422,125.41 = 81,725.96/x
  3. Step 3: Cross multiply
    281,402.30x = 422,125.41 × 81,725.96
  4. Step 4: Simplify right side
    281,402.30x = 34,498,604,372.64
  5. Step 5: Solve for x
    x = 34,498,604,372.64/281,402.30
  6. Step 6: Final answer
    x = 122,595.32

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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.