Home / 393,136.10-589,704.91-108,827.48

Finding the Fourth Proportional to 393,136.10, 589,704.91 and 108,827.48

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Solution

The fourth proportional to 393,136.10, 589,704.91 and 108,827.48 is: 163,241.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,136.10 : 589,704.91 = 108,827.48 : x
  2. Step 2: Convert to fraction form
    393,136.10/589,704.91 = 108,827.48/x
  3. Step 3: Cross multiply
    393,136.10x = 589,704.91 × 108,827.48
  4. Step 4: Simplify right side
    393,136.10x = 64,176,100,501.12
  5. Step 5: Solve for x
    x = 64,176,100,501.12/393,136.10
  6. Step 6: Final answer
    x = 163,241.43

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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.