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Finding the Fourth Proportional to 172,775.67, 259,238.39 and 84,106.23

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Solution

The fourth proportional to 172,775.67, 259,238.39 and 84,106.23 is: 126,195.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,775.67 : 259,238.39 = 84,106.23 : x
  2. Step 2: Convert to fraction form
    172,775.67/259,238.39 = 84,106.23/x
  3. Step 3: Cross multiply
    172,775.67x = 259,238.39 × 84,106.23
  4. Step 4: Simplify right side
    172,775.67x = 21,803,563,233.64
  5. Step 5: Solve for x
    x = 21,803,563,233.64/172,775.67
  6. Step 6: Final answer
    x = 126,195.80

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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.