Home / 155,917.44-215,022.60-102,182.94

Finding the Fourth Proportional to 155,917.44, 215,022.60 and 102,182.94

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Solution

The fourth proportional to 155,917.44, 215,022.60 and 102,182.94 is: 140,918.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,917.44 : 215,022.60 = 102,182.94 : x
  2. Step 2: Convert to fraction form
    155,917.44/215,022.60 = 102,182.94/x
  3. Step 3: Cross multiply
    155,917.44x = 215,022.60 × 102,182.94
  4. Step 4: Simplify right side
    155,917.44x = 21,971,641,434.44
  5. Step 5: Solve for x
    x = 21,971,641,434.44/155,917.44
  6. Step 6: Final answer
    x = 140,918.43

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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.