Home / 156,136.94-215,469.08-84,517.55

Finding the Fourth Proportional to 156,136.94, 215,469.08 and 84,517.55

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Solution

The fourth proportional to 156,136.94, 215,469.08 and 84,517.55 is: 116,634.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,136.94 : 215,469.08 = 84,517.55 : x
  2. Step 2: Convert to fraction form
    156,136.94/215,469.08 = 84,517.55/x
  3. Step 3: Cross multiply
    156,136.94x = 215,469.08 × 84,517.55
  4. Step 4: Simplify right side
    156,136.94x = 18,210,918,742.35
  5. Step 5: Solve for x
    x = 18,210,918,742.35/156,136.94
  6. Step 6: Final answer
    x = 116,634.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.