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Finding the Fourth Proportional to 172,604.66, 258,575.28 and 105,850.12

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Solution

The fourth proportional to 172,604.66, 258,575.28 and 105,850.12 is: 158,571.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,604.66 : 258,575.28 = 105,850.12 : x
  2. Step 2: Convert to fraction form
    172,604.66/258,575.28 = 105,850.12/x
  3. Step 3: Cross multiply
    172,604.66x = 258,575.28 × 105,850.12
  4. Step 4: Simplify right side
    172,604.66x = 27,370,224,417.03
  5. Step 5: Solve for x
    x = 27,370,224,417.03/172,604.66
  6. Step 6: Final answer
    x = 158,571.76

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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.