Home / 113,805.12-171,081.63-105,584.43

Finding the Fourth Proportional to 113,805.12, 171,081.63 and 105,584.43

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Solution

The fourth proportional to 113,805.12, 171,081.63 and 105,584.43 is: 158,723.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,805.12 : 171,081.63 = 105,584.43 : x
  2. Step 2: Convert to fraction form
    113,805.12/171,081.63 = 105,584.43/x
  3. Step 3: Cross multiply
    113,805.12x = 171,081.63 × 105,584.43
  4. Step 4: Simplify right side
    113,805.12x = 18,063,556,387.02
  5. Step 5: Solve for x
    x = 18,063,556,387.02/113,805.12
  6. Step 6: Final answer
    x = 158,723.58

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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.