Home / 118,891.67-164,043.55-80,656.43

Finding the Fourth Proportional to 118,891.67, 164,043.55 and 80,656.43

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Solution

The fourth proportional to 118,891.67, 164,043.55 and 80,656.43 is: 111,287.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,891.67 : 164,043.55 = 80,656.43 : x
  2. Step 2: Convert to fraction form
    118,891.67/164,043.55 = 80,656.43/x
  3. Step 3: Cross multiply
    118,891.67x = 164,043.55 × 80,656.43
  4. Step 4: Simplify right side
    118,891.67x = 13,231,167,107.53
  5. Step 5: Solve for x
    x = 13,231,167,107.53/118,891.67
  6. Step 6: Final answer
    x = 111,287.59

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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.