Home / 144,176.54-198,961.53-80,515.22

Finding the Fourth Proportional to 144,176.54, 198,961.53 and 80,515.22

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Solution

The fourth proportional to 144,176.54, 198,961.53 and 80,515.22 is: 111,109.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,176.54 : 198,961.53 = 80,515.22 : x
  2. Step 2: Convert to fraction form
    144,176.54/198,961.53 = 80,515.22/x
  3. Step 3: Cross multiply
    144,176.54x = 198,961.53 × 80,515.22
  4. Step 4: Simplify right side
    144,176.54x = 16,019,431,359.49
  5. Step 5: Solve for x
    x = 16,019,431,359.49/144,176.54
  6. Step 6: Final answer
    x = 111,109.83

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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.