Home / 281,048.26-421,738.35-103,679.14

Finding the Fourth Proportional to 281,048.26, 421,738.35 and 103,679.14

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Solution

The fourth proportional to 281,048.26, 421,738.35 and 103,679.14 is: 155,579.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,048.26 : 421,738.35 = 103,679.14 : x
  2. Step 2: Convert to fraction form
    281,048.26/421,738.35 = 103,679.14/x
  3. Step 3: Cross multiply
    281,048.26x = 421,738.35 × 103,679.14
  4. Step 4: Simplify right side
    281,048.26x = 43,725,469,433.02
  5. Step 5: Solve for x
    x = 43,725,469,433.02/281,048.26
  6. Step 6: Final answer
    x = 155,579.93

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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.