Home / 281,234.11-421,851.17-70,872.05

Finding the Fourth Proportional to 281,234.11, 421,851.17 and 70,872.05

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Solution

The fourth proportional to 281,234.11, 421,851.17 and 70,872.05 is: 106,308.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,234.11 : 421,851.17 = 70,872.05 : x
  2. Step 2: Convert to fraction form
    281,234.11/421,851.17 = 70,872.05/x
  3. Step 3: Cross multiply
    281,234.11x = 421,851.17 × 70,872.05
  4. Step 4: Simplify right side
    281,234.11x = 29,897,456,071.69
  5. Step 5: Solve for x
    x = 29,897,456,071.69/281,234.11
  6. Step 6: Final answer
    x = 106,308.07

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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.