Home / 108,136.14-161,986.71-53,937.42

Finding the Fourth Proportional to 108,136.14, 161,986.71 and 53,937.42

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Solution

The fourth proportional to 108,136.14, 161,986.71 and 53,937.42 is: 80,797.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,136.14 : 161,986.71 = 53,937.42 : x
  2. Step 2: Convert to fraction form
    108,136.14/161,986.71 = 53,937.42/x
  3. Step 3: Cross multiply
    108,136.14x = 161,986.71 × 53,937.42
  4. Step 4: Simplify right side
    108,136.14x = 8,737,145,211.69
  5. Step 5: Solve for x
    x = 8,737,145,211.69/108,136.14
  6. Step 6: Final answer
    x = 80,797.64

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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.