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Finding the Fourth Proportional to 172,561.56, 258,555.12 and 60,179.80

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Solution

The fourth proportional to 172,561.56, 258,555.12 and 60,179.80 is: 90,169.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,561.56 : 258,555.12 = 60,179.80 : x
  2. Step 2: Convert to fraction form
    172,561.56/258,555.12 = 60,179.80/x
  3. Step 3: Cross multiply
    172,561.56x = 258,555.12 × 60,179.80
  4. Step 4: Simplify right side
    172,561.56x = 15,559,795,410.58
  5. Step 5: Solve for x
    x = 15,559,795,410.58/172,561.56
  6. Step 6: Final answer
    x = 90,169.53

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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.