Home / 281,116.80-421,675.20-114,865.92

Finding the Fourth Proportional to 281,116.80, 421,675.20 and 114,865.92

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Solution

The fourth proportional to 281,116.80, 421,675.20 and 114,865.92 is: 172,298.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,116.80 : 421,675.20 = 114,865.92 : x
  2. Step 2: Convert to fraction form
    281,116.80/421,675.20 = 114,865.92/x
  3. Step 3: Cross multiply
    281,116.80x = 421,675.20 × 114,865.92
  4. Step 4: Simplify right side
    281,116.80x = 48,436,109,789.18
  5. Step 5: Solve for x
    x = 48,436,109,789.18/281,116.80
  6. Step 6: Final answer
    x = 172,298.88

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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.