Home / 172,647.24-258,882.54-79,072.80

Finding the Fourth Proportional to 172,647.24, 258,882.54 and 79,072.80

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Solution

The fourth proportional to 172,647.24, 258,882.54 and 79,072.80 is: 118,568.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,647.24 : 258,882.54 = 79,072.80 : x
  2. Step 2: Convert to fraction form
    172,647.24/258,882.54 = 79,072.80/x
  3. Step 3: Cross multiply
    172,647.24x = 258,882.54 × 79,072.80
  4. Step 4: Simplify right side
    172,647.24x = 20,470,567,308.91
  5. Step 5: Solve for x
    x = 20,470,567,308.91/172,647.24
  6. Step 6: Final answer
    x = 118,568.75

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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.