Home / 204,128.04-306,145.98-72,800.04

Finding the Fourth Proportional to 204,128.04, 306,145.98 and 72,800.04

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Solution

The fourth proportional to 204,128.04, 306,145.98 and 72,800.04 is: 109,183.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,128.04 : 306,145.98 = 72,800.04 : x
  2. Step 2: Convert to fraction form
    204,128.04/306,145.98 = 72,800.04/x
  3. Step 3: Cross multiply
    204,128.04x = 306,145.98 × 72,800.04
  4. Step 4: Simplify right side
    204,128.04x = 22,287,439,589.84
  5. Step 5: Solve for x
    x = 22,287,439,589.84/204,128.04
  6. Step 6: Final answer
    x = 109,183.63

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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.