Home / 261,185.68-391,408.98-111,275.02

Finding the Fourth Proportional to 261,185.68, 391,408.98 and 111,275.02

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Solution

The fourth proportional to 261,185.68, 391,408.98 and 111,275.02 is: 166,755.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,185.68 : 391,408.98 = 111,275.02 : x
  2. Step 2: Convert to fraction form
    261,185.68/391,408.98 = 111,275.02/x
  3. Step 3: Cross multiply
    261,185.68x = 391,408.98 × 111,275.02
  4. Step 4: Simplify right side
    261,185.68x = 43,554,042,077.68
  5. Step 5: Solve for x
    x = 43,554,042,077.68/261,185.68
  6. Step 6: Final answer
    x = 166,755.09

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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.