Home / 160,391.82-221,321.30-92,431.06

Finding the Fourth Proportional to 160,391.82, 221,321.30 and 92,431.06

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Solution

The fourth proportional to 160,391.82, 221,321.30 and 92,431.06 is: 127,543.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,391.82 : 221,321.30 = 92,431.06 : x
  2. Step 2: Convert to fraction form
    160,391.82/221,321.30 = 92,431.06/x
  3. Step 3: Cross multiply
    160,391.82x = 221,321.30 × 92,431.06
  4. Step 4: Simplify right side
    160,391.82x = 20,456,962,359.58
  5. Step 5: Solve for x
    x = 20,456,962,359.58/160,391.82
  6. Step 6: Final answer
    x = 127,543.68

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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.