Home / 143,388.73-197,875.25-79,725.97

Finding the Fourth Proportional to 143,388.73, 197,875.25 and 79,725.97

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Solution

The fourth proportional to 143,388.73, 197,875.25 and 79,725.97 is: 110,021.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,388.73 : 197,875.25 = 79,725.97 : x
  2. Step 2: Convert to fraction form
    143,388.73/197,875.25 = 79,725.97/x
  3. Step 3: Cross multiply
    143,388.73x = 197,875.25 × 79,725.97
  4. Step 4: Simplify right side
    143,388.73x = 15,775,796,245.24
  5. Step 5: Solve for x
    x = 15,775,796,245.24/143,388.73
  6. Step 6: Final answer
    x = 110,021.17

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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.