Home / 72,144.06-108,222.22-18,843.10

Finding the Fourth Proportional to 72,144.06, 108,222.22 and 18,843.10

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Solution

The fourth proportional to 72,144.06, 108,222.22 and 18,843.10 is: 28,266.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,144.06 : 108,222.22 = 18,843.10 : x
  2. Step 2: Convert to fraction form
    72,144.06/108,222.22 = 18,843.10/x
  3. Step 3: Cross multiply
    72,144.06x = 108,222.22 × 18,843.10
  4. Step 4: Simplify right side
    72,144.06x = 2,039,242,113.68
  5. Step 5: Solve for x
    x = 2,039,242,113.68/72,144.06
  6. Step 6: Final answer
    x = 28,266.25

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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.