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Finding the Fourth Proportional to 160,618.18, 221,647.11 and 92,638

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Solution

The fourth proportional to 160,618.18, 221,647.11 and 92,638 is: 127,836.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,618.18 : 221,647.11 = 92,638 : x
  2. Step 2: Convert to fraction form
    160,618.18/221,647.11 = 92,638/x
  3. Step 3: Cross multiply
    160,618.18x = 221,647.11 × 92,638
  4. Step 4: Simplify right side
    160,618.18x = 20,532,944,976.18
  5. Step 5: Solve for x
    x = 20,532,944,976.18/160,618.18
  6. Step 6: Final answer
    x = 127,836.99

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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.