Home / 191,272.80-263,951.13-105,231.36

Finding the Fourth Proportional to 191,272.80, 263,951.13 and 105,231.36

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Solution

The fourth proportional to 191,272.80, 263,951.13 and 105,231.36 is: 145,216.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,272.80 : 263,951.13 = 105,231.36 : x
  2. Step 2: Convert to fraction form
    191,272.80/263,951.13 = 105,231.36/x
  3. Step 3: Cross multiply
    191,272.80x = 263,951.13 × 105,231.36
  4. Step 4: Simplify right side
    191,272.80x = 27,775,936,383.44
  5. Step 5: Solve for x
    x = 27,775,936,383.44/191,272.80
  6. Step 6: Final answer
    x = 145,216.34

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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.