Home / 172,842.12-259,260.54-105,394.02

Finding the Fourth Proportional to 172,842.12, 259,260.54 and 105,394.02

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Solution

The fourth proportional to 172,842.12, 259,260.54 and 105,394.02 is: 158,089.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,842.12 : 259,260.54 = 105,394.02 : x
  2. Step 2: Convert to fraction form
    172,842.12/259,260.54 = 105,394.02/x
  3. Step 3: Cross multiply
    172,842.12x = 259,260.54 × 105,394.02
  4. Step 4: Simplify right side
    172,842.12x = 27,324,510,537.97
  5. Step 5: Solve for x
    x = 27,324,510,537.97/172,842.12
  6. Step 6: Final answer
    x = 158,089.42

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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.