Home / 167,720.05-231,454.69-91,239.85

Finding the Fourth Proportional to 167,720.05, 231,454.69 and 91,239.85

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Solution

The fourth proportional to 167,720.05, 231,454.69 and 91,239.85 is: 125,911.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,720.05 : 231,454.69 = 91,239.85 : x
  2. Step 2: Convert to fraction form
    167,720.05/231,454.69 = 91,239.85/x
  3. Step 3: Cross multiply
    167,720.05x = 231,454.69 × 91,239.85
  4. Step 4: Simplify right side
    167,720.05x = 21,117,891,197.40
  5. Step 5: Solve for x
    x = 21,117,891,197.40/167,720.05
  6. Step 6: Final answer
    x = 125,911.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.