Home / 172,147.10-258,200.07-45,796.61

Finding the Fourth Proportional to 172,147.10, 258,200.07 and 45,796.61

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Solution

The fourth proportional to 172,147.10, 258,200.07 and 45,796.61 is: 68,689.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,147.10 : 258,200.07 = 45,796.61 : x
  2. Step 2: Convert to fraction form
    172,147.10/258,200.07 = 45,796.61/x
  3. Step 3: Cross multiply
    172,147.10x = 258,200.07 × 45,796.61
  4. Step 4: Simplify right side
    172,147.10x = 11,824,686,616.76
  5. Step 5: Solve for x
    x = 11,824,686,616.76/172,147.10
  6. Step 6: Final answer
    x = 68,689.43

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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.