Home / 115,097.67-172,588.68-67,081.74

Finding the Fourth Proportional to 115,097.67, 172,588.68 and 67,081.74

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Solution

The fourth proportional to 115,097.67, 172,588.68 and 67,081.74 is: 100,588.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,097.67 : 172,588.68 = 67,081.74 : x
  2. Step 2: Convert to fraction form
    115,097.67/172,588.68 = 67,081.74/x
  3. Step 3: Cross multiply
    115,097.67x = 172,588.68 × 67,081.74
  4. Step 4: Simplify right side
    115,097.67x = 11,577,548,958.70
  5. Step 5: Solve for x
    x = 11,577,548,958.70/115,097.67
  6. Step 6: Final answer
    x = 100,588.91

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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.