Home / 105,948.54-158,660.37-72,553.05

Finding the Fourth Proportional to 105,948.54, 158,660.37 and 72,553.05

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Solution

The fourth proportional to 105,948.54, 158,660.37 and 72,553.05 is: 108,649.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,948.54 : 158,660.37 = 72,553.05 : x
  2. Step 2: Convert to fraction form
    105,948.54/158,660.37 = 72,553.05/x
  3. Step 3: Cross multiply
    105,948.54x = 158,660.37 × 72,553.05
  4. Step 4: Simplify right side
    105,948.54x = 11,511,293,757.63
  5. Step 5: Solve for x
    x = 11,511,293,757.63/105,948.54
  6. Step 6: Final answer
    x = 108,649.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.