Home / 172,217.21-258,325.17-45,857.45

Finding the Fourth Proportional to 172,217.21, 258,325.17 and 45,857.45

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Solution

The fourth proportional to 172,217.21, 258,325.17 and 45,857.45 is: 68,786.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,217.21 : 258,325.17 = 45,857.45 : x
  2. Step 2: Convert to fraction form
    172,217.21/258,325.17 = 45,857.45/x
  3. Step 3: Cross multiply
    172,217.21x = 258,325.17 × 45,857.45
  4. Step 4: Simplify right side
    172,217.21x = 11,846,134,040.86
  5. Step 5: Solve for x
    x = 11,846,134,040.86/172,217.21
  6. Step 6: Final answer
    x = 68,786.01

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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.