Home / 281,136.36-421,638.30-103,546.92

Finding the Fourth Proportional to 281,136.36, 421,638.30 and 103,546.92

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Solution

The fourth proportional to 281,136.36, 421,638.30 and 103,546.92 is: 155,295.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,136.36 : 421,638.30 = 103,546.92 : x
  2. Step 2: Convert to fraction form
    281,136.36/421,638.30 = 103,546.92/x
  3. Step 3: Cross multiply
    281,136.36x = 421,638.30 × 103,546.92
  4. Step 4: Simplify right side
    281,136.36x = 43,659,347,319.04
  5. Step 5: Solve for x
    x = 43,659,347,319.04/281,136.36
  6. Step 6: Final answer
    x = 155,295.98

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1.5x scale

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.